• Comments help explain code. Use // for single-line comments and /* */ for multi-line comments.
• Java is case-sensitive, and statements end with a semicolon ;.

public class HelloWorld {
    public static void main(String[] args) {
        //This is a single line comment
        /*
        This is
        a multi-line
        comment
        */
        System.out.println("Hello, Java!");
    }
}