Java "Hello, World!" Program
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
Java Program Add Two Integers
import java.util.Scanner;
public class AddTwoIntegers {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first integer: ");
int num1 = scanner.nextInt();
System.out.print("Enter the second integer: ");
int num2 = scanner.nextInt();
int sum = num1 + num2;
System.out.println("The sum of " + num1 + " and " + num2 +
" is " + sum);
scanner.close();
}
}
Java Program to Compute Quotient and Remainder
import java.util.Scanner;
public class QuotientAndRemainder {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the dividend: ");
int dividend = scanner.nextInt();
System.out.print("Enter the divisor: ");
int divisor = scanner.nextInt();
// Compute the quotient and remainder
int quotient = dividend / divisor;
int remainder = dividend % divisor;
// Print the result
System.out.println("Quotient: " + quotient);
System.out.println("Remainder: " + remainder);
// Close the Scanner object
scanner.close();
}
}
Java program to perform following operations on two numbers input by the user: 1) Addition 2) subtraction 3) multiplication
import java.util.Scanner;
public class NumberOperations {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first number: ");
double num1 = scanner.nextDouble();
System.out.print("Enter the second number: ");
double num2 = scanner.nextDouble();
double addition = num1 + num2;
System.out.println("Addition: " + addition);
double subtraction = num1 - num2;
System.out.println("Subtraction: " + subtraction);
double multiplication = num1 * num2;
System.out.println("Multiplication: " + multiplication);
scanner.close();
}
}
Java Program to Swap Two Numbers
import java.util.Scanner;
public class SwapNumbers {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first number: ");
int num1 = scanner.nextInt();
System.out.print("Enter the second number: ");
int num2 = scanner.nextInt();
System.out.println("Before swapping:");
System.out.println("First number: " + num1);
System.out.println("Second number: " + num2);
int temp = num1;
num1 = num2;
num2 = temp;
System.out.println("After swapping:");
System.out.println("First number: " + num1);
System.out.println("Second number: " + num2);
scanner.close();
}
}