# Java bitwise AND to check a given number is odd or even

Let’s learn java bitwise AND to check a given number is odd or even.

## Java bitwise AND to check a given number is odd or even

Java program to check given number is even or odd by using AND (&) operator is one of the common interview question.

In this post we are going to learn to find number even odd using bitwise operator in java.

Basically to check if number is even we divide it by 2 and its remainder will be 0.

Meanwhile to check if number is odd its remainder will be 1 when divided by 2.

Bitwise AND (&) operator returns bit by bit of input values in binary representation. Here we have to check right most significant bit.

If the right most significant bit is 1 then it is odd number else it is even number.

Also integer numbers are represented as 2’s complement.

Also read – even odd program in java using method

For even number it has 0 as there Least Significant Bit (LSB).

Here’s java program to check whether the given number is even or odd using (&) operator.

```import java.util.Scanner;
public class EvenOddBitwise
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
int number = sc.nextInt();
if((number & 1) == 0)
{
System.out.println(number + " is an even number.");
}
else
{
System.out.println(number + " is an odd number.");
}
sc.close();
}
}

```

Output:

56 is an even number.

Meanwhile we can also check a given number is even or odd using division operator ( / ).

Here division operator basically returns quotient.

For example, if we take a number and divide by two and multiply result with 2 then the number will be less in case of odd number and equal in case of even number.

```int result = number / 2;
if(result * 2 == number)
{
System.out.println("Even number");
}

```

find number even odd using bitwise xor operator in java

Here’s example. Meanwhile learn bitwise operator in java.

```public class UsingBitwiseOperator
{
static boolean checkEven(int number)
{
if((number ^ 1) == number + 1)
return true;
else
return false;
}
public static void main(String[] args)
{
int num = 54;
System.out.println(checkEven(num) == true ? "Even" : "Odd");
}
}

```

Output:

Even

```public class UsingBitwiseOperator
{
static boolean checkEven(int number)
{
if((number ^ 1) == number + 1)
return true;
else
return false;
}
public static void main(String[] args)
{
int num = 51;
System.out.println(checkEven(num) == true ? "Even" : "Odd");
}
}

```

Output:

Odd