a += b
a -= b
a *= b
a /= b
a %= b
a &= b
a |= b
a ^= b
a <<= b
a >>= b
++a
--a
a++
a--
+a
-a
a + b
a - b
a * b
a / b
a % b
~a
a & b
a | b
a ^ b
a << b
a >> b
!a
a && b
a || b
a == b
a != b
a < b
a > b
a <= b
a >= b
a[b]
*a
&a
a->b
a.b
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a, b
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sizeof
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Operators constitute the basic building block of any programming language. Java too provides many types of operators which can be used according to the need to perform various calculations and functions, be it logical, arithmetic, relational, etc. They are classified based on the functionality they provide.
Types of Operators:
This article explains all that one needs to know regarding Assignment Operators.
These operators are used to assign values to a variable. The left side operand of the assignment operator is a variable, and the right side operand of the assignment operator is a value. The value on the right side must be of the same data type of the operand on the left side. Otherwise, the compiler will raise an error. This means that the assignment operators have right to left associativity, i.e., the value given on the right-hand side of the operator is assigned to the variable on the left. Therefore, the right-hand side value must be declared before using it or should be a constant. The general format of the assignment operator is,
The Assignment Operator is generally of two types. They are:
1. Simple Assignment Operator: The Simple Assignment Operator is used with the “=” sign where the left side consists of the operand and the right side consists of a value. The value of the right side must be of the same data type that has been defined on the left side.
2. Compound Assignment Operator: The Compound Operator is used where +,-,*, and / is used along with the = operator.
Let’s look at each of the assignment operators and how they operate:
This is the most straightforward assignment operator, which is used to assign the value on the right to the variable on the left. This is the basic definition of an assignment operator and how it functions.
Syntax:
Example:
This operator is a compound of ‘+’ and ‘=’ operators. It operates by adding the current value of the variable on the left to the value on the right and then assigning the result to the operand on the left.
Note: The compound assignment operator in Java performs implicit type casting. Let’s consider a scenario where x is an int variable with a value of 5. int x = 5; If you want to add the double value 4.5 to the integer variable x and print its value, there are two methods to achieve this: Method 1: x = x + 4.5 Method 2: x += 4.5 As per the previous example, you might think both of them are equal. But in reality, Method 1 will throw a runtime error stating the “i ncompatible types: possible lossy conversion from double to int “, Method 2 will run without any error and prints 9 as output.
Method 1 will result in a runtime error stating “incompatible types: possible lossy conversion from double to int.” The reason is that the addition of an int and a double results in a double value. Assigning this double value back to the int variable x requires an explicit type casting because it may result in a loss of precision. Without the explicit cast, the compiler throws an error. Method 2 will run without any error and print the value 9 as output. The compound assignment operator += performs an implicit type conversion, also known as an automatic narrowing primitive conversion from double to int . It is equivalent to x = (int) (x + 4.5) , where the result of the addition is explicitly cast to an int . The fractional part of the double value is truncated, and the resulting int value is assigned back to x . It is advisable to use Method 2 ( x += 4.5 ) to avoid runtime errors and to obtain the desired output.
Same automatic narrowing primitive conversion is applicable for other compound assignment operators as well, including -= , *= , /= , and %= .
This operator is a compound of ‘-‘ and ‘=’ operators. It operates by subtracting the variable’s value on the right from the current value of the variable on the left and then assigning the result to the operand on the left.
This operator is a compound of ‘*’ and ‘=’ operators. It operates by multiplying the current value of the variable on the left to the value on the right and then assigning the result to the operand on the left.
This operator is a compound of ‘/’ and ‘=’ operators. It operates by dividing the current value of the variable on the left by the value on the right and then assigning the quotient to the operand on the left.
This operator is a compound of ‘%’ and ‘=’ operators. It operates by dividing the current value of the variable on the left by the value on the right and then assigning the remainder to the operand on the left.
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Code inspection: use compound assignment.
Category : Language Usage Opportunities
ID : ConvertToNullCoalescingCompoundAssignment
EditorConfig : resharper_convert_to_null_coalescing_compound_assignment_highlighting=[error|warning|suggestion|hint|none]
Default severity : Suggestion
Language : C#
Requires SWA : No
This inspection suggests using a compound assignment expression to make the code more concise and easier to read. Compound assignments are shorthand ways of combining arithmetic, boolean, bitwise, and other binary operators with the assignment operator = . They can help reduce repetitive code and make the intent of the code clearer.
The most commonly used compound assignment expression is probably the addition assignment ( x += y ), but there are other compound assignments that can come in handy. Here are some examples:
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Compound Assignment Operators. In C++, the assignment operator can be combined into a single operator with some other operators to perform a combination of two operations in one single statement. ... The modulus assignment operator calculates the remainder when the variable on the left is divided by the value or variable on the right and ...
The built-in assignment operators return the value of the object specified by the left operand after the assignment (and the arithmetic/logical operation in the case of compound assignment operators). The resultant type is the type of the left operand. The result of an assignment expression is always an l-value.
Like the "=" assignment operator, compound operators return the assigned result of the expression: long x = 1; long y = (x+= 2); Copy. Both x and y will hold the value 3. The assignment (x+=2) does two things: first, it adds 2 to the value of the variable x, which becomes 3; second, it returns the value of the assignment, which is also 3. 3.
Assignment performs implicit conversion from the value of rhs to the type of lhs and then replaces the value in the object designated by lhs with the converted value of rhs. Assignment also returns the same value as what was stored in lhs (so that expressions such as a = b = c are possible). The value category of the assignment operator is non ...
The Modulus Assignment Operator is used to take the modulus, that is, it first divides the operands and then takes the remainder and assigns it to the left operand. ... The += and -= operators in Python are compound assignment operators. += adds the right-hand operand to the left-hand operand and assigns the result to the left-hand operand ...
i: 8, i %= 3: 2. As you can see in the first part, the regular modulo operator leaves at the original value. This means that we get 256 modulo 100, 12 and 3. However, in the second part the compound modulo operator keeps changing , so that the next modulo only operates on the remainder.
Learn Java compound assignment operators with practical examples. Elevate coding skills effectively. ... Modulus and Assignment (%=) This operator calculates the remainder of the division of the left-hand operand by the right-hand operand and assigns the result back to the left-hand operand. Example: int e = 17; e %= 5; // e = e % 5; // Now 'e ...
Modulus AND assignment operator. It takes modulus using two operands and assigns the result to the left operand. C %= A is equivalent to C = C % A <<= ... C allows you to combine arithmetic and bitwise operators with the = symbol to form augmented or compound assignment operator. The augmented operators offer a convenient shortcut for combining ...
The following are all possible assignment operator in java: 1. += (compound addition assignment operator) 2. -= (compound subtraction assignment operator) 3. *= (compound multiplication assignment operator) 4. /= (compound division assignment operator) 5. %= (compound modulo assignment operator)
The compound assignment operators are specified in the form e1 op= e2, where e1 is a modifiable l-value not of const type and e2 is one of the following −. The e1 op= e2 form behaves as e1 = e1 op e2, but e1 is evaluated only once. The following are the compound assignment operators in C++ −. Multiply the value of the first operand by the ...
This operator can be used to connect Arithmetic operator with an Assignment operator. For example, you write a statement: a = a+6; In Java, you can also write the above statement like this: a += 6; There are various compound assignment operators used in Java:
Compound assignment operators in Javan - The Assignment OperatorsFollowing are the assignment operators supported by Java language −OperatorDescriptionExample=Simple assignment operator. Assigns values from right side operands to left side operand.C = A + B will assign value of A + B into C+=Add AND assignment operator. It adds right ope.
Compound Assignment Operators. Many modern computer languages offers a special set of operators known as compound assignment operators, which can help you write code faster. Looking at the "Equivalent to" column, it becomes clear that same result can be achieved by just using the classic assignment ( = ) operator.
1.5. Compound Assignment Operators¶. Compound assignment operators are shortcuts that do a math operation and assignment in one step. For example, x += 1 adds 1 to the current value of x and assigns the result back to x.It is the same as x = x + 1.This pattern is possible with any operator put in front of the = sign, as seen below. If you need a mnemonic to remember whether the compound ...
The modulus operator - or more precisely, the modulo operation - is a way to determine the remainder of a division operation. Instead of returning the result of the division, the modulo operation returns the whole number remainder. ... Older TIL: Compound Assignment Operators in... Newer Adobe ColdFusion Summit 2019. No data found for the given ...
Assignment operators are used in programming to assign values to variables. We use an assignment operator to store and update data within a program. They enable programmers to store data in variables and manipulate that data. The most common assignment operator is the equals sign (=), which assigns the value on the right side of the operator to ...
You can also combine the arithmetic operators with the simple assignment operator to create compound assignments. For example, x+=1; and x=x+1; both increment the value of x by 1. The + operator can also be used for concatenating (joining) two strings together, as shown in the following ConcatDemo program:
Solution 1: In C#, compound assignment operators are used to perform an arithmetic operation on a variable and then assign the result back to the same variable in a single statement. This can help to make code more concise and readable. Here are some examples of compound assignment operators in C#: 1. Addition assignment operator (+=): csharp.
All arithmetic and bitwise operators can be used in compound assignment operators. This post shows examples using addition and subtraction to show the general syntax. Division, multiplication, modulus, AND, OR, XOR,left shift, right shift, and unsigned right shift would also work. Overall, using the compound assignment operator requires less ...
They are derived from the grammar. In C++, the conditional operator has the same precedence as assignment operators, and prefix ++ and -- and assignment operators don't have the restrictions about their operands. Associativity specification is redundant for unary operators and is only shown for completeness: unary prefix operators always ...
Note: The compound assignment operator in Java performs implicit type casting. Let's consider a scenario where x is an int variable with a value of 5. int x = 5; If you want to add the double value 4.5 to the integer variable x and print its value, there are two methods to achieve this: Method 1: x = x + 4.5. Method 2: x += 4.5.
A special case scenario for all the compound assigned operators. i= 2; i+= 2 * 2; #equals to, i = i+(2*2); In all the compound assignment operators, the expression on the right side of = is always calculated first and then the compound assignment operator will start its functioning. Hence in the last code, statement i+=2*2; is equal to i=i+ (2* ...
Compound assignments are shorthand ways of combining arithmetic, boolean, bitwise, and other binary operators with the assignment operator =. They can help reduce repetitive code and make the intent of the code clearer. The most commonly used compound assignment expression is probably the addition assignment ( x += y ), but there are other ...