swap without third variable in java code example
Example 1: swap three variables in java without using temporary variable
public class SwapThreeNumbersWithoutTemp
{
static int num1, num2, num3;
public static void main(String[] args)
{
num1 = 30; num2 = 60; num3 = 90;
System.out.println("Before swapping three numbers: num1 = " + num1 + ", num2 = " + num2 + ", num3 = " + num3);
swapWithoutTemporary();
System.out.println("After swapping three numbers: num1 = " + num1 + ", num2 = " + num2 + ", num3 = " + num3);
}
static void swapWithoutTemporary()
{
num1 = num1 + num2 + num3;
num2 = num1 - (num2 + num3);
num3 = num1 - (num2 + num3);
num1 = num1 - (num2 + num3);
}
}
Example 2: swapping values in java using a function not working
#include <stdio.h>
int main() {
int a = 23, b = 47;
int t;
printf("Before. a: %d, b: %d\n", a, b);
t = a;
a = b;
b = t;
printf("After. a: %d, b: %d\n", a, b);
return 0;
}