Java Basics

Basic program structure

package main.java; public class MainClass { public static void main (String [] args) { // Your code goes here ... } }
  • Anything you type to the right of "//" is a comment, and it will not be read as code.

Sample line of code (to display text)

System.out.println("Testing");
  • Put lines of code in the program between the curly braces { } shown in the structure.
  • Put a semicolon ";" at the end of every line of code.
  • You can put spaces and blank lines between segments/lines code to make it more readable.

Challenge

Write a program that will display "Hello World".

Quiz

Completed