Introduction
The “+=” operator is a shorthand operator used in programming languages such as C, C++, Java, and JavaScript. It is used to add a value to a variable and assign the result to the same variable. This operator is often used in loops and other programming tasks to increment a variable by a certain amount. In this article, we will discuss what the “+=” operator does and how it can be used in programming.
Solution
The “+=” operator is an operator used in programming languages such as C, C++, Java, and JavaScript. It is a shorthand operator that adds the value of the right operand to the left operand and assigns the result to the left operand. For example, if x is a variable with the value 5, then x += 3 would result in x having the value 8.
From:
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/op1.html
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.
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solved What does “+=” operator do? [duplicate]
What Does the “+=” Operator Do?
The “+=” operator is a shorthand operator used in programming languages such as C, C++, Java, and JavaScript. It is used to add a value to a variable and assign the result to the same variable. For example, if you have a variable x with the value 5, and you want to add 3 to it, you can use the “+=” operator like this:
x += 3;
This is equivalent to writing:
x = x + 3;
The “+=” operator can also be used with other data types, such as strings. For example, if you have a string s with the value “Hello”, and you want to add ” World” to it, you can use the “+=” operator like this:
s += " World";
This is equivalent to writing:
s = s + " World";
The “+=” operator is a convenient way to add a value to a variable without having to write out the entire expression. It is also useful for performing multiple operations on a variable in a single line of code.