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Thread: Issue display result in time format

  1. #1
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    Default Issue display result in time format

    hello,

    I'm trying to display a result from 2 inputs calculations from minutes to HHMM, however when I try and calculate it with the below code only the HH changes to the current hour. eg. 129 will only display as 02:00. I have tested it by adding num1 with num2 and this does indeed display as hhmm, but I need the multiplications & divisions to take place

    I'm new to this so any advice is appreciated.

      EditText e1 = (EditText) findViewById(R.id.Distance);
        EditText e2 = (EditText) findViewById(R.id.Height);
        TextView t1 = (TextView) findViewById(R.id.Result);
        Integer num1 = Integer.parseInt(e1.getText().toString());
        Integer num2 = Integer.parseInt(e2.getText().toString());
        Integer sum = (int) ((num1 / 5 * 60) + (num2 / 600 * 60));
     
        int hours = sum / 60;
        int minutes = sum % 60;
     
            t1.setText(String.format("Estimated time: %d hr : %02d min", hours, minutes));
        }
    }

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Issue display result in time format

    Can you print out and post some examples of input to the code and the output that the code creates?
    What values are in num1 and num2?
    What Strings are returned by the getText methods of e1 and e2?
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: Issue display result in time format

    The inputs:
    e1 represents journey distance in km , so for example user enters "5"
    e2 represent height of summit in m, so user could enter "900"

    num1 is the value of e1 divided by 5 then multiplied by 60
    num2 is the value of e2 divided by 600 then multiplied by 60

    Both results then need added together to give a total in minutes.

    I'm unable to attach an image of the output, result. I hope that was what you asked for.

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: Issue display result in time format

    What should be the values of hour and minutes for those values of "5" and "900"?
    If you don't understand my answer, don't ignore it, ask a question.

  5. #5
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    Default Re: Issue display result in time format

    If the user entered 5 & 900 the final value would be = 150 (2hours & 30min)

    Currently the output only displays 02hr:00min

  6. #6
    Super Moderator Norm's Avatar
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    Default Re: Issue display result in time format

    The code is using integer math: 4/10 = 0 Change it to use decimal: 4/10.0 = 0.4
    If you don't understand my answer, don't ignore it, ask a question.

  7. The Following User Says Thank You to Norm For This Useful Post:

    java_d (October 21st, 2020)

  8. #7
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    Default Re: Issue display result in time format

    Amazing!! So simple, thanks!

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