Answers for "how to swap two values in java"

2

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());
      }
   }
}
Posted by: Guest on February-08-2021
0

swapping java primitives values

// Swapping values
team1 = "A";
team2 = "OSU";

String temp = team2; // team1 = "A", team2 = "OSU", temp = "OSU" 
team2 = team1;       // team1 = "A", team2 = "A", temp = "OSU" 
team1 = temp;        // team1 = "OSU", team2 = "A", temp = "OSU"
Posted by: Guest on November-14-2021

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