Comments in Java
Comments in Java are non-executable statements used to make the code more understandable and maintainable. They are ignored by the compiler during code execution. Comments are essential for writing clear and maintainable code, providing explanations and notes that help both the original developer and others who might work with the code later.
Types of Comments:
1 . Single-line comments: These comments start with // and extend to the end of the line. They are useful for brief explanations or notes about specific lines or blocks of code.
Example Single-line comment:
int Age = 15; // Assigning value 15 to variable Age
2 . Multi-line comments: These comments start with /* and end with */. They can span multiple lines and are useful for longer explanations or for commenting out large sections of code.
Example Multi-line comments:
int Age = 15; /* Assigning value 15 to variable Age
As this is a required condition */
Course Video
YouTube Reference :
Java supports single-line (//), multi-line (/* */), and documentation (/** */) comments.
Use // followed by your comment text. Example: // This is a comment.
Enclose text between /* and */. Example: /* Multi-line comment */.
Comments starting with /** are used to describe classes, methods, or fields and generate documentation using Javadoc.
They make code easier to read, understand, and maintain.
No, comments are ignored by the compiler.
No, Java does not support nested comments.
You can comment out specific lines of code to test or isolate issues.
Write concise, clear comments, avoid obvious statements, and keep comments updated with code changes.
Yes, it is free and available online.
