# Best Way In Java To Swap Two Numbers

Hello everyone!! Welcome to flower brackets blog. Today we will discuss best way in java to swap two numbers.

Well, there are two ways to swap numbers in java,

1. with temporary variable
2. without temporary variable

#### Example: Best Way In Java To Swap Two Numbers

```/* WITH TEMPORARY VARIABLE */

import java.util.Scanner;

public class SwapTwoNumbers
{
public static void main(String[] args)
{
int a;
int b;
int swap;

System.out.println("Please enter two integers to swap : ");
Scanner sc = new Scanner(System.in);
a = sc.nextInt();
b = sc.nextInt();

System.out.println("Before swap: a = " + a + "\nBefore swap: b = " + b);
swap = a;
a = b;
b = swap;
System.out.println("After swap: a = " + a + "\nAfter swap: b = " + b);
}
}

```

Output:

```/* WITHOUT TEMPORARY VARIABLE */

import java.util.Scanner;

public class SwapTwoNumbers
{
public static void main(String[] args)
{
int a;
int b;

System.out.println("Please enter two integers to swap : ");
Scanner sc = new Scanner(System.in);
a = sc.nextInt();
b = sc.nextInt();

System.out.println("Before swap: a = " + a + "\nBefore swap: b = " + b);
a = a + b;
b = a - b;
a = a - b;
System.out.println("After swap: a = " + a + "\nAfter swap: b = " + b);
}
}

```

Output:

Please enter two integers to swap: 10 5
Before swap: a = 10
Before swap: b = 5
After swap: a = 5
After swap: b = 10