Bitwise Operator Assignments
By: aathishankaran in Java Tutorials on 2007-02-07
All of the binary bitwise operators have a shorthand form similar to that of the algebraic operators, which combines the assignment with the Bitwise operation. For example, the following two statements, which shift the value in a right by four bits, are equivalent:
a = a >> 4;
a >>= 4;
Likewise, the following two statements, which result in a being assigned the bitwise expression a OR b, are equivalent:
a = a | b;
a |= b;
The following program creates a few integer variables and then uses the shorthand form of bitwise operator assignments to manipulate the variables:
class OpBitEquals {
public static void main (String args[]) {
int a = 1;
int b = 2;
int c = 3;
a | = 4;
b >>= 1;
c <<= 1;
a ^= c;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
}
}
The output of this program is shown here:
a = 3
b = 1
c = 6
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