Java program to swap two numbers using function
import java.util.Scanner; // java swap function public class SwapTwoNumberDemo { int numOne, numTwo; public void swapNum(SwapTwoNumberDemo stn) { int temp; temp = stn.numOne; stn.numOne = stn.numTwo; stn.numTwo = temp; } public static void main(String[] args) { SwapTwoNumberDemo obj = new SwapTwoNumberDemo(); try { Scanner sc = new Scanner(System.in); System.out.println("First number : "); obj.numOne = sc.nextInt(); System.out.println("Second number : "); obj.numTwo = sc.nextInt(); obj.swapNum(obj); System.out.println("After swapping - numOne : " + obj.numOne + ", numTwo : " + obj.numTwo); sc.close(); } catch(Exception ex) { System.out.println("Exception: " + ex.toString()); } } }
