Beginner Java Concepts

Comments

Comments are text that is ignored by compilers and are very useful in programming. You can use comments to explain your code to others, debug, and even layout a blue print for building your code (psuedocode).

// This is a single line comment.

/*
This 
is 
a 
multi line
comment
*/

Comments can be used to describe sections of your code.

// This is the main method. It prints the string "Hello World" to the console. 
public static void main(String[] args) {

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

}

Comments are also useful when debugging your code.

public static int add(int num1, int num2){

    return num1 - num2;

}


public static void main(String[] args) {

    // I should be getting 8...but I'm getting 2?
    System.out.println(add(5,3));

}