Java Bitwise AND operator
Overview
In this tutorial, we will learn about Java Bitwise AND operator with a simple java program. Bitwise AND operator produce 1 if the corresponding bits in both the operands are 1; otherwise, it produces zero. The (&) is the bitwise AND operation symbol.
Table
Outcomes table with bitwise AND operator are shown as follows:
| Operand: A | Operand: B | Bitwise AND : A&B |
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
Code
Sample Java program to demo the operator usage.
/*
* Java Program to demonstrate
* Bitwise AND Operator.
* Java Tutorials -- www.TestingDocs.com
*/
public class BitwiseANDDemo {
public static void main(String args[])
{
//Declare two variables
int A = 1;
int B = 0;
System.out.println("A & B =: " + (A&B));
A = 1;
B = 1;
System.out.println("A & B =: " + (A&B));
}
}
Sample output
A & B =: 0
A & B =: 1
Notice that the result is 1 if the individual bits had a 1 for both the operands A and B.
Exercise
1. The above program displays the two rows of the outcome table. Modify the A and B values to check the other rows of the outcome table.
2. Run the following program and check the output. The program masks the bits of the variable A except the lower 4 bits. 0x0F is a hexadecimal number which is equivalent to 15 in the decimal number format.
It represents the lower four bits and translates to the bit pattern 0000 1111.
public class BitwiseExerciseDemo {
public static void main(String args[])
{
//Declare two variables
int A = 173;
int bitmask = 0x000F; //mask other bits except the lower 4 bits
System.out.println("Result =: " + (A & bitmask));
}
}
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