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Thread: How do I get my answers to out with 2 decimal places?

  1. #1
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    Default How do I get my answers to out with 2 decimal places?

    Hi I have my program working all I need now is to output the answers to 2 decimal places. Could somebody help me out with this? Below is my code.




    /*
    * To change this template, choose Tools | Templates
    * and open the template in the editor.
    */
    package assignment2;

    import java.text.DecimalFormat;
    import java.util.Scanner;

    /**
    *
    * @author Adam
    */
    public class PowerSquare {

    public static void main(String[] args) {


    double num1;
    double num2;
    double num1a;
    double num2a;


    Scanner scan = new Scanner(System.in);

    System.out.println("Enter 2 numbers");
    num1 = scan.nextDouble();



    for (double i = num1; i <= num1 {
    num1a =(i * i * i);



    num2 = scan.nextDouble();
    num2 = (num2 < 0 ? -num2 : num2);

    for (double a = num2; a <= num2{
    num2a =(Math.sqrt(a));
    num2a =(Math.round(num2a));


    if (num1a > num2a){

    System.out.print(num1a);
    }
    else if (num2a > num1a){

    System.out.print(num2a);
    }
    else if (num2 < 0){

    DecimalFormat fmt = new DecimalFormat("#.##");
    System.out.println(num2a);
    }
    System.exit(0);
    }







    }}}


  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
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    Default Re: How do I get my answers to out with 2 decimal places?

    The API is your best friend. Check out the DecimalFormat class.

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  3. #3
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    Default Re: How do I get my answers to out with 2 decimal places?

    I still don't really understand? I have been trying for hours and just can't seem to get it right.

  4. #4
    Administrator copeg's Avatar
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    Default Re: How do I get my answers to out with 2 decimal places?

    One of the aspects of programming newcomers need to learn is to use all resources at your disposal, and this doesn't exclude doing web searches. A quick search turns up lots of useful hits, including the following:
    http://www.javaprogrammingforums.com...al-places.html
    If you still do not understand, make an effort to write some code, use the API posted above, and post back exactly what about you don't understand.

  5. The Following User Says Thank You to copeg For This Useful Post:

    KevinWorkman (February 8th, 2012)

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