C Language
#include<stdio.h>
#include<conio.h>
void main()
{
int a, b, c;
clrscr();
printf("Enter a");
scanf("%d", &a);
printf ("Enter b");
scanf ("%d", &b);
c=a;
a=b;
b=c;
printf("After swaping a = %d", a);
printf("b = %d",b);
getch();
}
/*OUTPUT*/
Enter a 9
Enter b 11
After swapping a = 11 b=9