Java
Here’s a basic Java program that prints “Hello, World!” and shows the structure of a Java class:
public class Main {
public static void main(String[] args) {
System.out.println(“Hello, World!”);
}
}
public static void main(String[] args) {
System.out.println(“Hello, World!”);
}
}
How it works
public class Main→ defines a class namedMainmainmethod → the entry point where execution startsSystem.out.println→ prints text to the console
If you want something more practical, here’s a slightly more interesting example: a program that adds two numbers.
import java.util.Scanner;
public class AddNumbers {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print(“Enter first number: “);
int a = scanner.nextInt();
System.out.print(“Enter second number: “);
int b = scanner.nextInt();
int sum = a + b;
System.out.println(“Sum = “ + sum);
scanner.close();
}
}
public class AddNumbers {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print(“Enter first number: “);
int a = scanner.nextInt();
System.out.print(“Enter second number: “);
int b = scanner.nextInt();
int sum = a + b;
System.out.println(“Sum = “ + sum);
scanner.close();
}
}