Answers for "swap two numbers without third variable in java"

1

swap two variables without temporary java

import java.*; 
  
class noTemp { 
  
    public static void main(String a[]) 
    { 
        int x = 10; 
        int y = 5; 
        x = x + y; 
        y = x - y; 
        x = x - y; 
        System.out.println("After swaping:"
                           + " x = " + x + ", y = " + y); 
    } 
}
Posted by: Guest on January-22-2021
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

java program to swap two numbers

int a, b, c;
a = 5;
b = 3;
System.out.println("Before SWAP a = " + a + ", b = " + b);
c = a;
a = b;
b = c;
System.out.println("After SWAP a = " + a + ", b = " + b);
Posted by: Guest on November-11-2020
0

Swapping of two numbers in java with temporary variable

public class Main{public static void main(String[] args) {float a = 3.66f, b = 6.47f;System.out.println("a number " + a);System.out.println("b number " + b);float temp = a;a = b;b = temp;System.out.println("After swapping");System.out.println("a number " + a);System.out.println("b number " + b);}}
Posted by: Guest on June-12-2021

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