What is &= stands for in Java?

&= is a compound assignment operator.

a&=10 evaluates to a = a & 10

Below table summarizes the compound assignment operators.

Compound Operator	Example	Explanation
+=	a+=3	a =  a + 3
-=	a-=3	a =  a – 3
*=	a*=3	a =  a * 3
/=	a/=3	a =  a / 3
%=	a%=3	a =  a % 3
&=	a&=3	a =  a & 3
|=	a|=3	a =  a | 3
^=	a^=3	a =  a ^ 3
>>=	a>>=3	a =  a >> 3
>>>=	a>>>=3	a =  a >>> 3
<<=	a<<=3	a =  a << 3

App.java

package com.sample.app;

public class App {

 public static void main(String args[]) {
  int a = 7;

  System.out.println("(a|=3) = " + (a |= 3));
  System.out.println("(a+=3) = " + (a += 3));
  System.out.println("(a-=3) = " + (a -= 3));
  System.out.println("(a*=3) = " + (a *= 3));
  System.out.println("(a/=3) = " + (a /= 3));
  System.out.println("(a%=3) = " + (a %= 3));
  System.out.println("(a&=3) = " + (a &= 3));
  System.out.println("(a^=3) = " + (a ^= 3));
  System.out.println("(a<<=3) = " + (a <<= 6));
  System.out.println("(a>>=3) = " + (a >>= 3));
  System.out.println("(a>>>=3) = " + (a >>>= 3));

 }

}

Output

(a|=3) = 7
(a+=3) = 10
(a-=3) = 7
(a*=3) = 21
(a/=3) = 7
(a%=3) = 1
(a&=3) = 1
(a^=3) = 2
(a<<=3) = 128
(a>>=3) = 16
(a>>>=3) = 2

You may like

Miscellaneous

Interview Questions

Programming Questions

Explicitly invoke the default implementation of a method

Regular Expression: Remove all non-numeric characters from string

Can a constructor in Java is private?

What is |= stands for in Java?