Question

Q21. Wte a program to define a class Numbers with a method void change(int x, int y), to
interchange or swap the argument values in x and y. Print the numbers before and after
swap.​

Answer 1

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Explanation:

// C program to swap two variables

#include <stdio.h>

int main()

{

int x, y;

printf("Enter Value of x ");

scanf("%d", &x);

printf("\nEnter Value of y ");

scanf("%d", &y);

int temp = x;

x = y;

y = temp;

printf("\nAfter Swapping: x = %d, y = %d", x, y);

return 0;