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);
}
}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());
}
}
}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);swap two numbers java
int a = 5;
int b = 6;
int temp = a;
a = b;
b = temp;
// now a is 6 and b is 5.swap three variables in java without using temporary variable
// 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);
}
}Copyright © 2021 Codeinu
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