Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java

Posted by Ei 123
Ei 123
6,924 Points

How to remove the dot in while loop?

Hello everyone, I started to study JAVA, So sorry for the question.. I practice the WHILE LOOP, so I have this code:

import java.util.Scanner; public class Class {

    public static void main( String[] args )
    {
        Scanner keyboard = new Scanner(System.in);

        System.out.println( "Type in a message" );
        System.out.print( "Message: " );
        String message = keyboard.nextLine();

        double n = 0;
        while ( n < 10 )
        {
            System.out.println( (n+1) + "." +  message );
            n++;
        }

    }
}

so, I want to get a result somthing like that: 10. 20. 30. and etc..

but I get: 1.0. , 2.0., 3.0. and etc..

what I should do to remove this dot, between 1 and 0...? thank you very much for your help :).

3 Answers

Luca Cunico
PLUS
Luca Cunico
Courses Plus Student 14,196 Points
Luca Cunico
Luca Cunico
Courses Plus Student 14,196 Points

This is one way:

import java.util.Scanner;

public class Main {
    public static void main( String[] args )
    {
        Scanner keyboard = new Scanner(System.in);

        System.out.println( "Type in a message" );
        System.out.print( "Message: " );
        String message = keyboard.nextLine();

        int n = 0;
        while ( n < 10 )
        {
            System.out.println( (n+1) + "0" + "." +  message );
            n++;
        }

    }
}

This is the other way:

import java.util.Scanner;

public class Main {
    public static void main( String[] args )
    {
        Scanner keyboard = new Scanner(System.in);

        System.out.println( "Type in a message" );
        System.out.print( "Message: " );
        String message = keyboard.nextLine();

        int n = 10;
        while ( n < 101 )
        {
            System.out.println( (n) + "." +  message );
            n+=10;
        }

    }
}

On my output I got:

10.<Your_message>

20.<Your_message>

as you requested

Luca Cunico
Luca Cunico
Courses Plus Student 14,196 Points
Luca Cunico
Luca Cunico
Courses Plus Student 14,196 Points

I set the while condition to 101 on the second example cause I assume you want to end the program at 100.<Message> as your first program ended at 10.

Ei 123
Ei 123
6,924 Points
Ei 123
Ei 123
6,924 Points

sorry but I have not got the right result yet, now I get: 11.0, 12.0, sorry.. again I need to get: 10. , 20. , 30.,...and etc..

Ei 123
Ei 123
6,924 Points
Ei 123
Ei 123
6,924 Points

OK, now it's work,
Thank you very much, it's very help me :)