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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
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 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 example uses a single-line comment at the end of a line of code:
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 World
to the screen, and it is amazing */
System.out.println("Hello World");
It is up to you which you want to use. Normally, we use //
for short comments, and /* */
for longer.