from the following which is an assignment operator mcq

Python Programming

Python Operators and Expression Quiz

Updated on: February 24, 2024 | 46 Comments

This Python Operators and Expression quiz provide Multiple Choice Questions (MCQ) to get familiar with all operators of Python.

Also, See : Python Operators .

The quiz contains 15 Questions . Solve 10 correct to pass the test.
You will have to read all the given answers and click over the correct answer.
The page will reload after Quiz submission. After submission, scroll the page to view the result.

1. What is the output of print(2 * 3 ** 3 * 4)

2. Bitwise shift operators ( << , >> ) has higher precedence than Bitwise And( & ) operator

3. 4 is 100 in binary and 11 is 1011 . What is the output of the following bitwise operators?

4. What is the output of the following assignment operator

5. What is the output of the following code

6. What is the output of the following code

print(bool(0), bool(3.14159), bool(-3), bool(1.0+1j))

7. What is the output of the expression print(-18 // 4)

8. What is the output of print(2 ** 3 ** 2)

9. What is the output of the following addition ( + ) operator

10. What is the output of print(10 - 4 * 2)

11. Which of the following operators has the highest precedence?

Hint : Python operators precedence

12. What is the output of the following code

13. What is the output of print(2%6)

14. What is the value of the following Python Expression

print(36 / 4)

15. What is the output of the following Python code

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from the following which is an assignment operator mcq

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Operators and Expressions in C – MCQ

Here are the most important Multiple choice questions on Operators and Expressions in C programming . The questions are from the following sections,

Operators in C
Expressions and Operator Precedence in C
Type casting in C
int basic_pay = 23000;
int basic_pay = 23,000;
int basic pay = 23000;
int $basic_pay = 23000;

Show Answer

Variable names cannot contain white spaces, commas, or $

The modulo division (%) operator produces the remainder of an integer division.

Comma operator
Conditional operator
Relational operator
Unary plus operator

Refer to the table of operator precedence and associativity of C

All arithmetic operators have the same level of precedence.

The modulus operator % can be used only with integers.

A unary expression consists of only one operand with no operators.
The operators <=, >=, and != all enjoy the same level of priority.
Compile-time error
%, *, /, +, –
-, +, *, /, %
%, +, -, *, /
+, – , %, *, /

Precedence of arithmetic operators.

Value of x is 3
Value of x is 2
Value of x is 1
True or false
0 if false and a positive number if true.
Undefined behavior
To get the size of data types or variables in bytes
To get the size of variables only
To get the size of the structure only
None of the above
If-Else operator
Ternary operator
Logical operator
Comparison operator

The ‘:?’ operator is called the conditional operator or ternary operator.

sizeof(int) is not less than sizeof(long)
sizeof(int) equals sizeof(unsigned)
sizeof(double) is not less than sizeof(float)
Both B and C

In C, sizeof(int) is not less than sizeof(long) and sizeof(int) equals sizeof(unsigned) regardless of the implementation,

must yield the same value
must yield different values
may or may not yield the same value
none of the above

For example, integer division of 8 and 3 will result in 2.

will be stopped if one of its components evaluates to false
will be stopped if one of its components evaluates to true
takes place from left to right
across an assignment operator.
if an operator has operands of different data types.
Both A and B
None of the above.
Casting refers to implicit type conversion
Coercion refers to implicit type conversion
Casting refers to explicit type conversion
All of above
x = x – y + 1
x = -x – y – 1
x = -x + y + 1
x = x – y – 1

x -= y + 1 is equivalent to x = x – (y + 1). That is x = x – y – 1.

It is a unary operator
The operand can come before or after the operator
It cannot be applied to an expression
results in a syntax error

The compiler will tokenize a+++b as a, ++, +, b. So, a+++b is equivalent a++ + b, which evaluates to 8.

the current value of a
the value of a + 1
an error message
garbage value

for the last question the order of precedence is &^| but in answer &|^ how it will come?

We have corrected the mistake in the original post to reflect the correct order of precedence for the operators & (bitwise AND), ^ (bitwise XOR), and | (bitwise OR) in C programming language, which is &^|, with the bitwise AND being evaluated first, followed by the bitwise XOR, and then finally the bitwise OR.

We’re sorry for any confusion that this mistake may have caused. We truly appreciate your attention to detail and for bringing this matter to our attention, thereby assisting us in enhancing the precision of our content.

Python Operators (Multiple Choice Questions) MCQ – Python Interview objective questions| Python Quiz

Post author: Sid Roy
Post published: February 15, 2024
Post category: Python MCQ and Quizzes

The following quiz provides Multiple Choice Questions (MCQs) related to Python Operators . This Python Quiz is also Interview (campus interview, walk-in interview, company interview), Placement or recruitment, entrance examinations, and competitive examinations oriented. You can practice these below questions to improve your python skills. You can click on the View Answer button to check the answer if you needed. Let’s solve this Python Operators (Multiple Choice Questions) MCQ – Python Interview objective questions| Python Quiz on Operators in python.

01. in the python statement x = a + 5 – b:.

terms, a group
operators, a statement
operands, an expression
operands, an equation

Answer : C Explanation: The objects that operators act on are called operands. An expression involving operators and operands is called an expression So, option C is correct.

02. Which is the correct operator for power(xy)?

None of the mentioned

Answer : B Explanation: In python, power operator is x**y i.e. 2**5=32.

03. What is the output of the following addition (+) operator

[10, 20, 30, 40] [10, 20, 30, 40]
[10, 20] [10, 20, 30, 40]
[10, 20, 10, 20] [10, 20, 30, 40]
[10, 20] [30, 40]

Answer : A Explanation: Because since b and a reference to the same object, when we use the addition assignment operator += on b, it changes both a and b.

04. Which function overloads the >> operator?

None of the above

Answer : D Explanation: rshift() function overloads the >> operator

05. What is the value of the expression 100 / 25?

Answer : B Explanation: The result of standard division is always float. The value of 100 // 25 (integer division) is 4.

06. Which one of these is floor division?

Answer : A Explanation: When both of the operands are integer then python chops out the fraction part and gives you the round-off value, to get the accurate answer use, floor division. This is floor division. For ex, 5/2 = 2.5 but both of the operands are integers so the answer of this expression in Python is 2. To get the 2.5 as an answer, use floor division.

07. What is the output of the following assignment operator

Syntax Error
No error but no output too

Answer : C Explanation: b = a -= 2 expression is Invalid

08. Which operator is overloaded by the or() function?

Answer : B Explanation: or() function overloads the bitwise OR operator “|”.

09. Should you use the == operator to determine whether objects of type float are equal?

Nope, not a good idea.
Sure! Go for it.

Answer : A Explanation: Internal representation of float objects is not precise, so they can’t be relied on to equal exactly what you think they will: >>> 1.1 + 2.2 == 3.3 False You should instead compute whether the numbers are close enough to one another to satisfy a specified tolerance: >>> tolerance = 0.00001 >>> abs((1.1 + 2.2) – 3.3) True

10. What is the order of precedence in python? i) Parentheses ii) Exponential iii) Multiplication iv) Division v) Addition vi) Subtraction

ii,i,iii,iv,v,vi
ii,i,iv,iii,v,vi
i,ii,iii,iv,vi,v
i,ii,iii,iv,v,vi

Answer : A Explanation: For order of precedence, just remember this PEMDAS-Parentheses> Exponential> Multiplication> Division> Addition> Subtraction (similar to BODMAS).

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Python Variables and Data Types (Multiple Choice Questions) MCQ – Python Interview objective questions| Python Quiz

Python Basics (Multiple Choice Questions) MCQ – Python Interview objective questions| Python Quiz

Java Operators MCQs (Multiple Choice Questions)

Java, one of the most widely used programming languages, offers a rich set of operators to perform various operations, from basic arithmetic to complex logical evaluations. Understanding these operators and their precedence is crucial for anyone looking to master Java programming. To aid in this journey, we have compiled a meticulously curated set of multiple-choice questions (MCQs) focusing on Java Operators. This collection spans from the foundational arithmetic and relational operators to the more nuanced conditional and bitwise operators. Whether you’re a novice programmer aiming to solidify your Java fundamentals or an experienced developer looking to brush up on the intricacies of Java operators, this guide is tailored to enhance your knowledge and test your skills.

Q1 Which operator is used to compare two values for equality in Java?

A = B == C === D <>

Q2 What is the output of the expression ’10 % 3′?

A 3 B 1 C 0 D 10

Q3 Which operator is used for string concatenation in Java?

A + B & C && D .

Q4 What does the ‘++’ operator do to a variable?

A Decreases its value by 1 B Increases its value by 1 C Doubles its value D Squares its value

Q5 Which of the following is the correct way to use the ternary operator?

A var result = (condition) ? valueIfTrue : valueIfFalse; B var result = (condition, valueIfTrue, valueIfFalse); C var result = ?(condition) valueIfTrue : valueIfFalse; D var result = if(condition) ? valueIfTrue : valueIfFalse;

Q6 What is the result of the expression ‘5 == 5’?

A true B false C 1 D 0

Q7 Which operator checks if two variables refer to the same object instance?

A == B === C equals() D instanceof

Q8 What is the result of the expression ‘!true’?

Q9 What is the precedence order of the operators: *, +, and ()?

A +, *, () B *, +, () C (), *, + D (), +, *

Q10 Which operator is used to invert the value of a boolean variable?

A ~ B ! C – D ^

Q11 Which of the following operators has the highest precedence in Java?

A && B + C / D ++

Q12 What does the expression ‘x &= y’ do?

A Sets x to the result of x AND y B Sets x to the result of x OR y C Sets x to the result of x XOR y D Compares x and y for equality

Q13 Which of the following is true about the ‘instanceof’ operator?

A It is used to compare numerical values B It is used for arithmetic operations C It checks if an object is an instance of a specific class or interface D It concatenates strings

Q14 Which of the following is a unary operator in Java?

A + B – C / D *

Q15 What is the output of ‘1 << 2'?

A 1 B 2 C 3 D 4

Q16 What is the output of the following code snippet?

A 15 B 16 C 17 D 18

Q17 How do you perform a bitwise OR operation between two integers x and y?

A x || y B x | y C x OR y D x + y

Q18 Which operator is used for type casting in Java?

A cast B instanceof C () D typeof

Q19 What is the result of the expression ‘null instanceof Object’?

A true B false C NullPointerException D Compilation error

Q20 What does the expression ‘var a = 20; var b = a << 2;' set 'b' to?

A 5 B 40 C 80 D 100

Q21 Which of the following is NOT a relational operator in Java?

A B >= C == D =>

Q22 What is the use of the operator ‘?:’ in Java?

A To perform logical operations B To perform exponential calculations C To assign a value based on a condition D To concatenate strings

Q23 What does the ‘>>>=’ assignment operator do?

A Performs a right shift and assigns the result B Performs a left shift and assigns the result C Performs an unsigned right shift and assigns the result D Performs an unsigned left shift and assigns the result

Q24 Which operator is used to determine if an object is of a certain type (class) at runtime?

A == B != C instanceof D getClass()

Q25 What does the expression ‘true || false’ evaluate to in Java?

A true B false C 0 D 1

Q26 Which of the following is the correct use of the bitwise XOR operator in Java?

A int result = x ~ y; B int result = x ^ y; C int result = x | y; D int result = x && y;

Q27 What is the result of the following operation: ‘4 | 3’?

A 0 B 7 C 1 D 12

Q28 In Java, what does the ‘>>>=’ operator do?

A Performs a right arithmetic shift and assigns the result B Performs a left arithmetic shift and assigns the result C Performs an unsigned right shift and assigns the result D Performs an unsigned left shift and assigns the result

Navigating through the realm of Java operators is a fundamental step towards mastering Java programming. The provided MCQs offer a panoramic view of Java’s operator capabilities, from manipulating numbers and strings to making complex decisions based on various conditions. Engaging with these questions not only reinforces theoretical concepts but also sharpens practical problem-solving skills. As you progress, remember that the understanding of operators extends beyond their individual functionality; it’s about recognizing their role in the broader context of Java programming paradigms. We encourage learners to delve deeper into each topic, experiment with code examples, and continuously challenge their understanding. This exploration is not just about passing a test; it’s about laying a solid foundation for your Java programming journey.

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Search this blog, java operators quiz - mcq - multiple choice questions.

In this blog post, we present a Java Operators quiz to test your knowledge and understanding of operators in the Java programming language.

Operators play a crucial role in performing various operations on data, including arithmetic, assignment, logical operators, comparison, and more. Let's dive into the quiz questions and see how well you can tackle these challenges!

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The answer and explanation of each question have given at the end of this post.

1. Which operator is used for equality comparison in Java?

Explanation:, 2. which operator is used for arithmetic addition in java, 3. what is the output of the following program, 4. which operator is used for performing logical and in java, 5. what is the output of the following program, 6. what is the output of the following program, 7. what is the output of the following program, 8. which operator is used to increment a variable by one in java, 9. which operator is used for performing string concatenation in java.

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Assignment operator explanation in Java

I have this and it gives:

I was hoping it will give

At (1) Why was the value of the index in assignment not changed to 2 ( and kept as 3). ?

3 Answers 3

The right-associativity of = implied by section 15.26 of the Java Language Specification (JLS) means that your expression can be represented as a tree , thus:

But then, section 15.7 states:

The Java programming language guarantees that the operands of operators appear to be evaluated in a specific evaluation order, namely, from left to right.

Therefore, arr[index] is evaluated before index = 2 is, i.e. before the value of index is updated.

Obviously, you should never write code that relies on this fact, as it relies on rules that almost no reader understands.

Nitpick: arr[index] is not evaluated as it's not even expression here. arr and index are. – zch Commented Jul 22, 2013 at 0:22
@zch: arr[index] is an expression, no? – Oliver Charlesworth Commented Jul 22, 2013 at 0:23
@OliCharlesworth, not really on the left side of assignment (in Java). It surely doesn't work like an expression there. – zch Commented Jul 22, 2013 at 0:30
@zch: Hmm, sort of. But indeed the quote in your answer describes it as an expression... – Oliver Charlesworth Commented Jul 22, 2013 at 0:31
In other words, never be ashamed to use parentheses. – Hot Licks Commented Jul 22, 2013 at 0:42

Java language Specification: 15.26.1. Simple Assignment Operator = If the left-hand operand is an array access expression (§15.13), possibly enclosed in one or more pairs of parentheses, then: First, the array reference subexpression of the left-hand operand array access expression is evaluated. If this evaluation completes abruptly, then the assignment expression completes abruptly for the same reason; the index subexpression (of the left-hand operand array access expression) and the right-hand operand are not evaluated and no assignment occurs. Otherwise, the index subexpression of the left-hand operand array access expression is evaluated . If this evaluation completes abruptly, then the assignment expression completes abruptly for the same reason and the right-hand operand is not evaluated and no assignment occurs. Otherwise, the right-hand operand is evaluated . If this evaluation completes abruptly, then the assignment expression completes abruptly for the same reason and no assignment occurs. [...] (further steps are explained)

As you can see the index is evaluated before the right-hand side of the assignment.

The array index header is evaluated first, to conclude the appropriate location for the assignment ( arr[index] ).
All following operators are evaluated for precedence, and found equal (all operators are assignments and thus have the same precedence).
Than the operands are evaluated according to the associativity, which is right-to-left for the assignment operator.

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Java MCQ Topics
Operators & Assignments
Regular Expressions
Garbage Collection
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Java Programming Reference
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Java MCQ Questions - Operators & Assignments

This section focuses on the "operators and assignments" in Java programming. These Multiple Choice Questions (MCQ) should be practiced to improve the Java programming skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements and other competitive examinations.

A. Characters B. Boolean C. Numeric D. Both Numeric & Characters

Explanation: The operand of arithmetic operators can be any of numeric or character type, But not boolean.

A. Both Integers and floating - point numbers B. Integers C. Floating - point numbers D. None of the mentioned

Explanation: Modulus operator can be applied to both integers and floating point numbers..

A. 1 B. 2 C. 3 D. 4

Explanation: Decrement operator, âˆ’âˆ’, decreases the value of variable by 1.

A. Assignment operators can be used only with numeric and character data type B. Assignment operators are more efficiently implemented by Java run-time system than their equivalent long forms C. Assignment operators run faster than their equivalent long forms D. None of the mentioned

Explanation: None of the mentioned.

A. TRUE B. FALSE C. Can be true or false D. can not say

Explanation: Both data types have different memory representation that is why 8-byte integral data type can be stored to 4-byte floating point data type.

A. 14 B. 12 C. 13 D. 10

Explanation: Output of the expression is 13.

A. ( ) B. { } C. Both A & B D. None of these

Explanation: Parentheses(), Array subscript{} and Member selection- have the same precedence.

A. Compare two boolean values B. Compare two numeric values C. Combine two boolean values D. Combine two numeric values

Explanation: Logical AND(&&) and Logical OR(||) combine two boolean values.

A. ((x 1)) && (x B. ((x 1)) || (x C. (1 > x > 100) || (x D. 1

Explanation: No explanation.

A. \\ B. \v C. \a D. \t

A. 12 15 B. 15 15 C. 3 7 5 3 7 5 D. 3 4 5 3 7 5

Explanation: The reference variables a1 and a3 refer to the same long array object. When the [1] element is updated in the fix() method, it is updating the array referred to by a1. The reference variable a2 refers to the same array object. So Output: 3+7+5+"" ""3+7+5 Output: 15 15 Because Numeric values will be added

A. true true B. true false C. false true D. false false

Explanation: The boolean b1 in the fix() method is a different boolean than the b1 in the start() method. The b1 in the start() method is not updated by the fix() method.

A. s st B. sst st C. st s st D. sst s st

Explanation: When the fix() method is first entered, start()'s s1 and fix()'s s1 reference variables both refer to the same String object (with a value of ""s""). Fix()'s s1 is reassigned to a new object that is created when the concatenation occurs (this second String object has a value of ""sst""). When the program returns to start(), another String object is created, referred to by s2 and with a value of ""st"".

A. (int)Math.min(d); B. (int)Math.abs(d); C. (int)Math.max(d); D. (int)Math.floor(d);

Explanation: The casting to an int is a smokescreen.

A. Compiler Error: Operator >> cannot be applied to negative numbers B. -2 2 C. 2 D. 2 2

Explanation: No explantion.

A. 1, 2 & 3 B. 1 & 4 C. 1, 2, 3 & 4 D. 3 & 2

Explanation: Operator ++ increases value of variable by 1. x = x + 1 can also be written in shorthand form as x += 1. Also x =+ 1 will set the value of x to 1.

A. 0 1 B. 1 1 C. 1.5 1 D. 1.5 1.0

Explanation: No Explanation.

A. s B. t C. h D. Compilation fails

Explanation: This is an example of a nested ternary operator. The second evaluation (x < 22) is true, so the ""t"" value is assigned to sup.

A. 7 B. 0 C. 14 D. 8

Explanation: The & operator produces a 1 bit when both bits are 1. The result of the & operation is 9. The ^ operator produces a 1 bit when exactly one bit is 1; the result of this operation is 10. The | operator produces a 1 bit when at least one bit is 1; the result of this operation is 14.

A. 44 B. 56 C. 48 D. 40

Explanation: Operator ++ has more preference than *, thus g becomes 4 and when multiplied by 8 gives 32.

A. Integer B. Boolean C. Characters D. Double

Explanation: None.

A. Integers B. Floating - point numbers C. Boolean D. None of the mentioned

Explanation: All relational operators return a boolean value ie. true and false.

A. && B. == C. ?: D. +=

Explanation: Operator Short circuit AND, &&, equal to, == , ternary if-then-else, ?:, are boolean logical operators. += is an arithmetic operator it can operate only on numeric values.

A. ! B. | C. & D. &&

Explanation: Operator short circuit and, &&, and short circuit or, ||, skip evaluating right hand operand when output can be determined by left operand alone.

A. true and false are numeric values 1 and 0 B. true and false are numeric values 0 and 1 C. true is any non zero value and false is 0 D. true and false are non numeric values

Explanation: True and false are keywords, they are non numeric values which do not relate to zero or non zero numbers. true and false are boolean values.

A. 1 B. 0 C. TRUE D. FALSE

Explanation: Operator > returns a boolean value. 5 is not greater than 6 therefore false is returned. output: $ javac Relational_operator.java $ java Relational_operator false

A. 0 B. 1 C. 3 D. -4

Explanation: None. output: $ javac ternary_operator.java $ java ternary_operator 3

A. 1 B. 2 C. Runtime error owing to division by zero in if condition D. Unpredictable behavior of program

Explanation: Operator short circuit and, &&, skips evaluating right hand operand if left hand operand is false thus division by zero in if condition does not give an error. output: $ javac Output.java $ java Output 2

A. 0 B. 1 C. FALSE D. TRUE

Explanation: None. output: $ javac Output.java $ java Output false

A. () B. ++ C. * D. >>

Explanation: Order of precedence is (highest to lowest) a -> b -> c -> d.

A. Integer B. Floating - point numbers C. Boolean D. None of the mentioned

Explanation: The controlling condition of ternary operator must evaluate to boolean.

A. 0 B. 1 C. 9 D. 8

A. 1 -> 2 -> 3 B. 2 -> 1 -> 3 C. 3 -> 2 -> 1 D. 2 -> 3 -> 1

A. 10 B. 11 C. 12 D. 56

Explanation: Operator ++ has the highest precedence than / , * and +. var2 is incremented to 7 and then used in expression, var3 = 7 * 5 / 7 + 7, gives 12. output: $ javac operators.java $ java operators 12

A. 24 8 B. 24 9 C. 27 8 D. 27 9

Explanation: Operator ++ has higher precedence than multiplication operator, *, x is incremented to 9 than multiplied with 3 giving 27. output: $ javac operators.java $ java operators 27 9

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Java Operators Multiple Choice Type Questions with Answers. Here five MCQs Questions with Answers are added and each question contain four options as possible answer but only one option is the correct answer. Select one and check your answer with the given correct answer.

6 - 2 + 10 % 4 + 7

View Answer Comment

Answer: Option [C]

Answer: Option [D]

The >>> operator does not exist in Java. The other operators are valid.

Examples: x >>=y result is x=x+y

x%=y result is x=x%y

x>>>=y result is x=x>>>y

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Parentheses(), Array subscript{} and Member selection- have the same precedence.

Answer: Option [B]

Logical AND(&&) and Logical OR(||) combine two boolean values.

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Augmented Assignment Operators in Python

An assignment operator is an operator that is used to assign some value to a variable. Like normally in Python, we write “ a = 5 “ to assign value 5 to variable ‘a’. Augmented assignment operators have a special role to play in Python programming. It basically combines the functioning of the arithmetic or bitwise operator with the assignment operator. So assume if we need to add 7 to a variable “a” and assign the result back to “a”, then instead of writing normally as “ a = a + 7 “, we can use the augmented assignment operator and write the expression as “ a += 7 “. Here += has combined the functionality of arithmetic addition and assignment.

So, augmented assignment operators provide a short way to perform a binary operation and assigning results back to one of the operands. The way to write an augmented operator is just to write that binary operator and assignment operator together. In Python, we have several different augmented assignment operators like +=, -=, *=, /=, //=, **=, |=, &=, >>=, <<=, %= and ^=. Let’s see their functioning with the help of some exemplar codes:

1. Addition and Assignment (+=): This operator combines the impact of arithmetic addition and assignment. Here,

a = a + b can be written as a += b

2. Subtraction and Assignment (-=): This operator combines the impact of subtraction and assignment.

a = a – b can be written as a -= b

Example:

3. Multiplication and Assignment (*=): This operator combines the functionality of multiplication and assignment.

a = a * b can be written as a *= b

4. Division and Assignment (/=): This operator has the combined functionality of division and assignment.

a = a / b can be written as a /= b

5. Floor Division and Assignment (//=): It performs the functioning of floor division and assignment.

a = a // b can be written as a //= b

6. Modulo and Assignment (%=): This operator combines the impact of the modulo operator and assignment.

a = a % b can be written as a %= b

7. Power and Assignment (**=): This operator is equivalent to the power and assignment operator together.

a = a**b can be written as a **= b

8. Bitwise AND & Assignment (&=): This operator combines the impact of the bitwise AND operator and assignment operator.

a = a & b can be written as a &= b

9. Bitwise OR and Assignment (|=): This operator combines the impact of Bitwise OR and assignment operator.

a = a | b can be written as a |= b

10. Bitwise XOR and Assignment (^=): This augmented assignment operator combines the functionality of the bitwise XOR operator and assignment operator.

a = a ^ b can be written as a ^= b

11. Bitwise Left Shift and Assignment (<<=): It puts together the functioning of the bitwise left shift operator and assignment operator.

a = a << b can be written as a <<= b

12. Bitwise Right Shift and Assignment (>>=): It puts together the functioning of the bitwise right shift operator and assignment operator.

a = a >> b can be written as a >>= b

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Java MCQs – Operators and Expressions

This article presents a series of Multiple-Choice Questions (MCQs) that will test your knowledge of Java operators and expressions. Whether you are a beginner looking to reinforce your understanding or an experienced developer sharpening your skills, these MCQs will help you deepen your comprehension of this crucial aspect of Java programming.

As a Java developer, understanding operators and expressions is fundamental to writing efficient and effective code. Operators are symbols that perform specific operations on variables, constants, and expressions, while expressions are combinations of these elements that produce a single value.

1.) What is the result of the expression 2 + 3 * 2?

Answer: Option B

Explanation: In Java, the multiplication operator (*) has higher precedence than the addition operator (+).

2.) What is the result of the expression “Java” + “CodePoint”?

Answer: Option C

Explanation: In Java, the + operator is used for both addition (for numeric types) and concatenation (for strings). When used with strings, it concatenates the two strings together.

3.) What is the result of the expression 11 % 3?

Explanation: The % operator is the modulus operator, which gives the remainder when the left operand is divided by the right operand. So, 11 % 3 gives the remainder of 11 divided by 3, which is 2.

4.) What is the result of the expression 1 > 3 && 4 < 5?

Explanation: In Java, the “&&” operator is the logical AND operator. It returns true if both operands are true; otherwise, it returns false.

5.) Which operator is used to check if two values are not equal in Java?

Answer: Option A

Explanation: In Java, the “!=” operator is used to check if two values are not equal.

6.) What is the result of the expression 1 + 2 + “0”?

Explanation: In Java, when the “+” operator is used with a string and any other data type, it performs string concatenation. So, 1 + 2 is evaluated first as 3 (numeric addition), and then “0” (a string) is concatenated to the result, resulting in “30”.

7.) What is the result of the expression 2 + 2 * 2 / 2 – 2?

Explanation: In Java, the order of evaluation for arithmetic operations follows the rules of precedence. The multiplication and division operations have higher precedence than addition and subtraction. So, the expression is evaluated as follows: (2 + (2 * 2) / 2) – 2 = 2.

8.) What is the purpose of the “++” operator in Java?

Answer: Option D

9.) Which operator is used for logical AND in Java?

Explanation: In Java, the “&&” operator is used for logical AND.

10.) Which operator is used for assignment in Java?

Explanation: In Java, the “=” operator is used for assignment.

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Q. Which of the following is the assignment operator?

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Control statements, java object class, java inheritance, java polymorphism, java abstraction, java encapsulation, java oops misc.

Java is a popular programming language that is widely used for developing applications in various domains such as web development, mobile app development, and more. In Java, operators are used to perform various operations on variables and values. In this section, we will discuss frequently asked , along with their answers and explanations.

1) Which of the following is a relational operator in Java?

The relational operator in Java is used to compare two values. The == operator is used to check if two values are equal or not.

The + operator is used to perform addition in Java.

The / operator is used to perform division in Java.

The logical operator in Java is used to perform logical operations such as AND, OR, and NOT. The && operator is used to perform the logical AND operation.

The unary operator in Java is used to operate on a single operand. The - operator is used to perform negation or change the sign of a value.

The increment operator (++) has the highest precedence in Java.

The % operator is used to perform modulo division in Java.

The & operator is used to perform bitwise AND in Java.

The == operator is used to perform equality comparison in Java.

The | operator is used to perform bitwise OR in Java.

The output of the code snippet int i = 0; while (i d

string is not a valid primitive data type in Java. The correct spelling for the string data type is String (capitalized).

The output of the code snippet int x = 5; int y = 10; if (x a

The decrement operator (--) is used to decrease the value of a variable by 1 in Java.

The | operator is used to perform logical OR in Java.

The output of the code snippet int a = 5; int b = 2; int c = a / b; System.out.println(c); is 2 because integer division is performed, which truncates the decimal part.

The c

Identifiers in Java cannot start with a digit. Therefore, 123test is not a valid identifier.

The conditional operator (also known as ternary operator) in Java is represented by the ? symbol. It is used to evaluate a boolean expression and return one of two values based on the result.

The output of the code snippet int x = 10; int y = 20; int z = x++ + ++y; System.out.println(z); is 33. The value of z is computed as 10 + 21 (x++ returns the original value of x, while ++y increments y before its value is used in the expression).

The ! operator is a unary logical operator in Java. It is used to perform the logical NOT operation.

The output of the code snippet int i = 0; do { System.out.print(i + " "); i++; } while (i a

The ^ operator is used to perform bitwise XOR (exclusive OR) in Java. It returns a 1 in each bit position where the corresponding bits of either but not both operands are 1.

The output of the code snippet int a = 5; int b = 7; System.out.println((a > b) ? "a is greater than b" : "a is less than or equal to b"); is a is less than or equal to b because the expression (a > b) is false, so the second option in the ternary operator is executed.