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Thread: he operator / is undefined for the argument type(s) String, int

  1. #1
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    Exclamation he operator / is undefined for the argument type(s) String, int

    	import java.io.*;
     
    public class FormatTime
    {
     
    public static void main(String[] args) 
    {
     
    //this will fetch our input values
    BufferedReader usrInput = new BufferedReader( new InputStreamReader( System.in) );
     
    System.out.println("Enter a number in seconds to format: ");
    String secs = usrInput.readLine();
     
    int hours = (secs / 3600);
    int remainder = (secs % 3600);
    int minutes = (remainder / 60);
    int seconds = (remainder % 60); 
     
    String Hour = (hours < 10 ? "0" : "") + hours;
    String Min = (minutes < 10 ? "0" : "") + minutes;
    String Sec = (seconds < 10 ? "0" : "") + seconds ;
     
    System.out.println(Hour +":"+ Min+":"+Sec);
    }
     
    }

    Could someone help me out with this error. I have googled but I just dont get it. I am new, very new. Started a online class 3 weeks ago and I have my first program due. My book just showed up today and I am way behind. this is the error I am getting.

    "The operator / is undefined for the argument type(s) String, int"


  2. #2
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    Default Re: he operator / is undefined for the argument type(s) String, int

    The problem is here:

    String secs = usrInput.readLine();

    int hours = (secs / 3600);
    int remainder = (secs % 3600);

    You are trying to divide secs by 3600, but secs is a String and 3600 is an int.
    So you are trying to do: String / int, that's why you're receiving that error.

    To fix this, make secs and Integer like this:
    String secString = usrInput.readLine();
    int secs = Integer.parseInt(secString);

    or achieve the same result by this:

    int secs = Integer.parseInt(userInput.readLine());

    Both statements will do the same.

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    mtbr00x (September 8th, 2009)

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    Super Moderator helloworld922's Avatar
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    Default Re: he operator / is undefined for the argument type(s) String, int

    or this:
    int secs = new Scanner(System.in).nextInt();
    int hours = secs/3600;
    //...

  5. The Following User Says Thank You to helloworld922 For This Useful Post:

    mtbr00x (September 8th, 2009)

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