Program to swap two numbers

Program to swap two numbers on fibonacci, factorial, prime, armstrong, swap, reverse, search, sort, stack, queue, array, linkedlist, tree, graph, pattern, string etc.

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Program to swap two numbers

This program is to swap/exchange two numbers by using a variable.

For example:

Numbers to swap: 11 and 12
Let x= 11, y= 12

Swapping Logic:
t=x= 11
x =y =12
y =t =11

After swapping:
x= 12, y = 11

Algorithm

STEP 1: START
STEP 2: DEFINE x, y, t
STEP 3: ENTER x, y
STEP 4: PRINT x, y
STEP 5: t = x
STEP 6: x= y
STEP 7: y= t
STEP 8: PRINT x, y
STEP 9: END

Java Program

import java.util.*;
class Swap_With {
    public static void main(String[] args) {
       int x, y, t;// x and y are to swap 
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter the value of X and Y");
       x = sc.nextInt();
       y = sc.nextInt();
       System.out.println("before swapping numbers: "+x +"	"+ y);
       /*swapping */
       t = x;
       x = y;
       y = t;
       System.out.println("After swapping: "+x +"	" + y);
       System.out.println( );
    }  
}

Output:

Enter the value of X and Y
2
3
before swapping numbers: 2   3
After swapping: 3   2

C Program

#include <stdio.h>
int main()
{
  int x, y, t;// x and y are the swapping variables and t is another variable
  printf("Enter the value of X and Y\n");
  scanf("%d%d", &x, &y);
  printf("before swapping numbers: %d   %d\n",x,y);
/*swapping*/
  t = x;
  x = y;
  y = t;
  printf("After swapping: %d    %d",x,y);
  return 0;
}

Output:

Enter the value of X and Y
29
39
before swapping numbers: 29   39
After swapping: 39  29

Python Program

x = int(input("Enter the value of x?"))
y = int(input("Enter the value of y?"))
print("before swapping numbers: %d   %d\n" %(x,y))
#swapping#
temp = x
x = y
y = temp
print("After swapping: %d   %d\n"%(x,y))

Output:

Enter the value of X?  87
Enter the value of Y?  43
before swapping numbers: 87  43
After swapping: 43  87

PHP Program

<?php
echo "Enter the value of x";
$x = readline();
echo "Enter the value of y";
$y = readline();
echo "before swapping numbers: ";
echo $x;
echo "    ";
echo $y;
echo "\n";
/*swapping*/
$temp = $x;
$x = $y;
$y = $temp;
echo "After swapping ";
echo $x;
echo "    ";
echo $y;
?>

Output:

Enter the value of x
33
Enter the value of Y
22
before swapping numbers: 33  22
After swapping  22  33

C# Program

using System; 
public class Swap
{
   public static void Main()
    {
    Console.WriteLine("Enter the value of x and y");
    int x=Convert.ToInt32(Console.ReadLine());
    int y = Convert.ToInt32(Console.ReadLine());
    int temp;
	Console.WriteLine("before swapping numbers: "+x +"	"+ y);
	  /*swapping*/
             temp = x;
	   x = y;
	   y = temp;
	Console.WriteLine("After swapping: "+x +"	" + y); 
}}

Output:

Enter the value of x and y
65
54
before swapping numbers:  65  54
After swapping:  54  65

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Program to swap two numbers