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🚀 Programming Example

Comments in Java

👁 5,661 Views
💻 Practical Program
📘 Step Learning

In this program you will learn how to write Comments in Java.

📌 Information & Algorithm

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:

Example


// This is a comment
System.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

💻 Program Code

 public class Sample {

   /* This is my first java program.
    * This is an example of multi-line comments.
    */

   public static void main(String []args) {
      // This is an example of single line comment
      /* This is also an example of single line comment. */
      System.out.println("This program is example of command");
   }
}


                        

🖥 Program Output

This program is example of command
                            

📘 Explanation

Now we will see multi-line Comments in java programming language

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:

Example


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

Single or multi-line comments?

It is up to you which you want to use. Normally, we use // for short comments, and /* */ for longer.

📚 Learning Subject

Master Programming Through Practical Examples

Improve your coding logic, problem-solving skills and programming confidence by practicing real-world examples with explanations.

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.