Java Comments
Comments can be used to explain Java code, and to make it more readable. It can also be used to prevent execution when testing alternative code.
Single-line Comments
Example
Single-line comments start with two forward slashes (//
). Any text between (//
) and the end of the line is ignored by Java (will not be executed). This example uses a single-line comment before a line of code:
Example
// This is a comment System.out.println("Hello CodeLines");
Java Multi-line Comments
Example
comments start with /* and ends with */. Any text between /* and */ will be ignored by Java. This example uses a multi-line comment (a comment block) to explain the code: