cannot call non-static method in a static method error?

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3 Replies - 1784 Views - Last Post: 25 January 2011 - 04:33 PM Rate Topic: -----

#1 Guest_jarrod*


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cannot call non-static method in a static method error?

Posted 25 January 2011 - 03:47 PM

i have to write a program to get the date from the gregorian calendar.
this is what i have but when i run the program i get an error saying that i cant call a non-static method into a static method.
any advice on how i can fix this? 



import java.util.GregorianCalendar;
import java.util.Calendar;

public class Main {

    Calendar date = new GregorianCalendar();

    public int getYear(){
        int year = date.get(Calendar.YEAR);
        return year;
    }
    public int getMonth(){
        int month = date.get(Calendar.MONTH);
        return month;
    }
    public int getDay(){
        int day = date.get(Calendar.DAY_OF_MONTH);
        return day;
    }
    public static void main(String[] args) {

        System.out.println("Starting...");
        System.out.println("Today's date is (yyyymmdd) " + getYear() + getMonth() + getDay() +".");
        System.out.println("...Finished");

 }


Edited by Dogstopper: :code:

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Replies To: cannot call non-static method in a static method error?

#2 Dogstopper  Icon User is offline

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Re: cannot call non-static method in a static method error?

Posted 25 January 2011 - 03:57 PM

You make these calls inside main().
getYear() + getMonth() + getDay()

However, main is static, so is a class method, not an object method and cannot call non-static methods directly. Instead, you must instantiate an object and call the methods through them:

 public static void main(String[] args) {

        System.out.println("Starting...");
        Main m = new Main();
        System.out.println("Today's date is (yyyymmdd) " + m.getYear() + m.getMonth() + m.getDay() +".");
        System.out.println("...Finished");
 }

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#3 j_rod722  Icon User is offline

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Re: cannot call non-static method in a static method error?

Posted 25 January 2011 - 04:23 PM

thanks a lot.
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#4 Dogstopper  Icon User is offline

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Re: cannot call non-static method in a static method error?

Posted 25 January 2011 - 04:33 PM

Glad I could help. :)
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