Thread: Swap Any Two Numbers in JAVA

In this code we will observe how we can swap two numbers. We can perform this by using a temporary variable which is used to store variable so that we can easily swap the numbers.

Code:

public class Swapping{
static void swap(int a,int b){
int temp=a;
a=b;
b=temp;
System.out.println("After swapping a = " + a + " b = " + b);
}
public static void main(String[] args){
int a=1;
int b=2;

System.out.prinln("Before swapping a="+a+" b="+b);
swap(a, b);
}
}

Try out this code, when you run this program you swap number as an output result:

Code:

public class Swap {
  public static void main(String[] args) {
  
    int x= Integer.parseInt(args[0]);
    int y= Integer.parseInt(args[1]);
    System.out.println("Before Swapping: "+ x +" and " + y);
    int z = x;
    x = y;
    y = z;
    System.out.println("After swapping: " + x +" and " + y);
  }
}

It is very simple code.So just have a look at the coding which can make you to understand more properly

Code:

public class swapnumber {
static void insertvalue (int x,int y )
{
int c;
c=x;
x=y;
y=c;
}
public static void main(String[] args) {
String o;
int a;
o=JOptionPane.showInputDialog("insert a");
a=Integer.parseInt(o);
String l;
int b;
l=JOptionPane.showInputDialog("insert b");
b=Integer.parseInt(l);
insertvalue(a,b) ;
System.out.println("x="+a);
System.out.println("y="+b);