JavaComments

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

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:

// This is a commentSystem.out.println("Hello World");

This example uses a single-line comment at the end of a line of code:

System.out.println("Hello World"); // This is a comment

Java Multi-line Comments

Multi-line 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:

/* The code below will print the words Hello Worldto the screen, and it is amazing */System.out.println("Hello World");

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