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Thread: Making a program that calculates how many days you lived.

  1. #1
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    Question Making a program that calculates how many days you lived.

    This is another code(below) from my CS Assignment. Here, I have to build a program that calculates how many days have you lived and how many hours you slept. I have seem to got the question but I get an error with Scanner sc = new Scanner(System.in);

    Here is the code:
          import java.util.*;
       public class DaysLived {
          public static void main(String args [] ){
             Scanner sc = new Scanner(System.in);
             int by;
             int cy;
             int mb;
             int mc;
             int db;
             int dc;
             int sleep;
             int aliveday;
             aliveday = ((cy-by)*365)+((mc-mb)*30)+(dc-db);
             sleep = aliveday*8;
     
             System.out.println("What's the date today?");
             System.out.print ("Year: ");  
             cy = sc.nextInt ();
             System.out.print ("Month: ");
             mc = sc.nextInt ();
             System.out.print ("Day: ");
             dc = sc.nextInt ();
             System.out.println ("Great, when were you born?");
             System.out.print ("Year: ");  
             by = sc.nextInt ();
             System.out.print ("Month: ");
             mb = sc.nextInt ();
             System.out.print ("Day: ");
             db = sc.nextInt ();
             System.out.println ("You have lived " + aliveday + "and you have slept " + sleep + " hours.");
          }
       }


    So, I am trying to get an input from the user.

    What should I do?

    Thanks in advance.
    Last edited by shifat96; February 9th, 2012 at 07:42 PM.


  2. #2
    Super Moderator Sean4u's Avatar
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    Default Re: Making a program that calculates how many days you lived.

    but I get an error with Scanner sc = new Scanner(System.in);
    What should I do?
    You should certainly copy and paste the full text of any errors you see.

  3. #3
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    Default Re: Making a program that calculates how many days you lived.

    Here are the errors I got:

    variable aliveday may have not been initialized
    variable sleep may have not been initialized
    valu cannot be used ( on sleep = aliveday*8; )

    Quote Originally Posted by Sean4u View Post
    You should certainly copy and paste the full text of any errors you see.

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    Default Re: Making a program that calculates how many days you lived.

    And now if you look carefully over the errors description, you will hopefully, get the answers yourself. Do as your compiler is asking you to do.

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