CSC201 — Basic Syntax of a Java Program

As explained earlier, Java™ is a programing language used for developing softwares (desktop softwares, mobile softwares). Java is platform-independent , that is, you can run a single java program on different platforms or devices.

BASIC SYNTAX OF JAVA PROGRAMS

A Java program in order to run, must have the following:
» A Class
» A main method (also called "method main").

A simple java program looks like this:

public class firstApp {

    public static void main(String[] args) {

        System.out.println("Hello World!");

    }

}

The above program, after run on either your Android Integrated Development Environment (AIDE) Application, or IDE on your PC, or console (Command Prompt) will print “Hello World!” . :-)

Now that is how a simple Java program look like. You'll understand better in later discussions. Feel free to ask questions!

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