The single-line comment is used to comment only one line of the code. It is the widely used and easiest way of commenting the statements. Single line comments starts with two forward slashes (//). Any text in front of // is not executed by Java.
What is a single line comment?
Single-line comments allow narrative on only one line at a time. Single-line comments can begin in any column of a given line and end at a new line or carriage return. The // character sequence marks the text following it as a single-line comment.
What is /* in Java?
/** and /* in Java comments
Java supports single-line and multi-line comments very similar to C and C++. … /** is known as documentation comments. It is used by Javadoc tool while creating the documentation for the program code. /* is used for multi-line comments.
What are the comments in Java?
Comments in Java are the statements that are not executed by the compiler and interpreter. It can be used to provide information or explanation about the variable, method, class or any statement. It can also be used to hide program code for a specific time.
How do you comment multiple lines in Java?
Multi line comments in Java start with /* and end with */. You can comment multiple lines just by placing them between /* and */.
How do you create a single line comment?
Single-line comments (informally, C++ style), start with // and continue until the end of the line. If the last character in a comment line is a the comment will continue in the next line. Multi-line comments (informally, C style), start with /* and end with */ .
What is the difference between single line comment and multiple line comment?
There is no difference whatsoever.
What is == and equals in Java?
Both equals() method and the == operator are used to compare two objects in Java. … equals() method for content comparison. In simple words, == checks if both objects point to the same memory location whereas . equals() evaluates to the comparison of values in the objects.
Can you use += in Java?
You can use += in for loop when you want to increment value of variable by more than 1. In general, you might have used i++ , but if you want to increment it by 2, then you can use i+=2 .
What does /* and */ mean in Java?
Use // text when you want to comment a single line of code. Use /* text */ when you want to comment multiple lines of code. Use /** documentation */ when you would want to add some info about the program that can be used for automatic generation of program documentation.
What are the two types of comments?
Using Two Types of Comments
- Marginal comments.
- End comments.
What are the different types of comments?
The Four Types of Comments
- The Wise Comment. The wise comment is one that shares knowledge. …
- The Wicked Comment. …
- The Ignorant Comment. …
- The One Who Didn’t Read. …
What are the three types of comments in Java?
In Java there are three types of comments:
- Single – line comments.
- Multi – line comments.
- Documentation comments.
What is a multiline comment?
Multiline comments are used for large text descriptions of code or to comment out chunks of code while debugging applications. Comments are ignored by the compiler.
How do you comment out a line in Java?
To comment a line:
- Place the cursor anywhere on the required line of code.
- Press Ctrl + / Two slashes “//” will be added to the front of the line, causing it to be recognized as a comment.