Hello world program in Java
Hello world program in Java Program public class HelloWorld { public static void main(String args[]) { System.out.println("Hello World!"); } }; Run Output Hello World! Explanation Let's see what is the meaning of class, public, static, void, main, String[], System.out.println(). class keyword is used to declare a class in java. public keyword is an access modifier which represents visibility, it means it is visible to all. static is a keyword, if we declare any method as static, it is known as static method. The core advantage of static method is that there is no need to create object to invoke the static method. The main method is executed by the JVM, so it doesn't require to create object to invoke the main method. So it saves memory. void is the return type of the method, it means it doesn't return any value. main represents startup of the program. String[] args is used for command line argume...