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Thread: How to convert

  1. #1
    Junior Member torstensson's Avatar
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    Default How to convert

    /* Hi guys, im been working a while with following code and now im really stuck
    * The code asks the user to put in the startime for a runner in a race and then the finishing time.* Then it converts the hh/mm/ss into seconds.
    * The last step is to convert the seconds into hh/mm/ss to show the total amount of time it took* for the runner to complete the track.
    * So, how do i convert the seconds into hh/mm/ss??????? ;(
    */

    package test;

    import javax.swing.*;

    /**
    *
    * @author torstensson
    */
    public class test {

    /**
    * @param args the command line arguments
    */
    public static void main(String[] args) {

    //Starttime input

    String strT1 = JOptionPane.showInputDialog("Starttime hour" );
    String strM1 = JOptionPane.showInputDialog("Starttime min" );
    String strS1 = JOptionPane.showInputDialog("Starttime sec" );

    System.out.println("Starttime:\n" + "---------\n" +
    "Hour: " + strT1 + "\n" + "Min: " + strM1 + "\n" +
    "Sec: " + strS1 + "\n");

    //Finishingtime input

    String strT2 = JOptionPane.showInputDialog("Finishing hour" );
    String strM2 = JOptionPane.showInputDialog("Finishing min" );
    String strS2 = JOptionPane.showInputDialog("Finishing sec" );

    System.out.println("Finishingtime :\n" + "---------\n" +
    "Hour: " + strT2 + "\n" + "Min: " + strM2 + "\n" +
    "Sec: " + strS2 + "\n");

    //Converting variables

    int intT1 = Integer.parseInt(strT1);
    int intM1 = Integer.parseInt(strM1);
    int intS1 = Integer.parseInt(strS1);

    int intT2 = Integer.parseInt(strT2);
    int intM2 = Integer.parseInt(strM2);
    int intS2 = Integer.parseInt(strS2);

    //Calculation of input

    int sumintT2 = intT2 * 3200;
    int sumintM2 = intM2 * 60;

    int sumintT1 = intT1 * 3200;
    int sumintM1 = intM1 * 60;

    int totSek = sumintT2 + sumintM2 - sumintT1 - sumintM1;

    System.out.println(totSek);



    //???????

    }
    }
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  2. #2
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    Default Re: How to convert

    Hi

    To get your seconds back into hh::mm:ss why dont u take your total number of seconds totSek and divide by 60 to give u the number of minutes. Then if u use the modulas operator % to do totSek modulas 60 that gives u the remainder of seconds.

    Doing that will give u your minutes and seconds and the same principle applies for minutes to hours.

    Hope this helps

  3. #3
    Think of me.... Mr.777's Avatar
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    Default Re: How to convert

    This post is duplicate.

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