Basic Structure of a Java Program: Understanding our First Java Hello World Program

• Basic Structure of a Java Program

package com.company; // Groups classes
public class Main{	// Entrypoint into the application
	public static void main(String[]args){
		System.out.println(“Hello World”);
	}
}

• Naming Conventions

For classes, we use Pascal Convention. First and Subsequent characters from a word are capital letters (uppercase)

      Example: Main, MyScanner, MyEmployee, CodeWithHarry

For functions and variables, we use camelCaseConvention. Here the first character is lowercase and the subsequent characters are uppercase like below:

      Main, myScanner, myMarks, CodeWithHarry