Problem : Display "Hello Java" five times on the console with help of do-while statements

Contents

1. 1 Program:
   1. 1.1 Step 1 - Coding
   2. 1.2 Step 2 - Deployment
   3. 1.3 Step 3 - Testing
   4. 1.4 Output
2. 2 FAQ
   1. 2.1 What is do-while loop?

Program:

Step 1 - Coding

Create a text file HelloDoWhile.java  and copy below contents.

/**
 *  A program that prints 'Hello Java' string with help of DoWhile loop statements.
 */

public class HelloDoWhile {

    public static void main(String[] args) {
        int i = 0;
        do {

            System.out.println( i+ " Hello Java ");
            i++;
        } while (i < 5);
    }
}

Step 2 - Deployment

1. Create a folder 'c:\sunilos'. 
2. Create or copy HelloDoWhile.java  into 'c:\sunilos' folder.
3. Open your command prompt and go to  'c:\sunilos'
   
4. Compile HelloDoWhile.java with help of 
• javac HelloDoWhile.java command.Command will create class file in the same folder.
5. Congratulations!! your Control Statement Java program is ready to serve.

Step 3 - Testing

1. Make sure you are on Command Prompt under c:\sunilos directory
   
2. Now start your Control Statements java program from command prompt with help of 
• java HelloDoWhile command.

Output

It will print Hello five times.
0 Hello Java
1 Hello Java
2 Hello Java
3 Hello Java
4 Hello Java

FAQ

What is do-while loop?

The do-while statement continually executes a block of statements while a particular condition is true. Its syntax can be expressed as:


The difference between do-while and while is that do-while evaluates its expression at the bottom of the loop instead of the top. Therefore, the statements within the do block are always executed at least once.

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