Thread: 1st Assignment Sem 2 Counter + GUI

Hey everyone, Semester 2 of my University course and they have decided to give us an assignment involving returning values from a method without actually teaching us how to do it...brilliant.

Anyway heres, I won't bother putting the GUI code and such but heres the code for the buttons and what they are "supposed to do."

Any help would be appreciated and any links to reading material would also be appreciated.

This is the code for the Logic class, i'm not supposed to touch this.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
class Logic
{
  private Counter counter = null;
 
  public Logic( Counter aCounter )
  {
    counter = aCounter;
  }
 
  public long getValue()
  {
    return counter.getValue();
  }
 
  public void process( String button )
  {
    String info = null;
    if ( button.equals( "Inc" ) )
    {
        counter.inc();
    }
    if ( button.equals( "Dec" ) )
    {
        counter.dec();
    }
    if ( button.equals( "Zero" ) )
    {
        counter.reset();
    }
  }
 
}

Heres the code for the Counter class, this is what i'm supposed to mess with but I can't figure out how to use the GetValue method to use the other methods to plus, minus and reset using a long num variable.

 
class Counter
{
  //Return the value of the counter
  public long getValue(){
      //ADVICE ON WHAT GOES HERE :S
    }
  //Reset the value of the counter to 0
  public void reset( ){
      long num = 0; 
    }
  //Increment the counter by 1
  public void inc(){
      long num = + 1;
    }
  //Decrement the counter by 1
  public void dec(){
      long num = - 1;
    }
}

Originally Posted by KevinWorkman

Word to the wise: don't waste time complaining about your teacher or course. Plenty of people learn without all of the aid that comes with a school-based education (tutors, peers, books, etc).

Recommended reading: Returning a Value from a Method (The Java™ Tutorials > Learning the Java Language > Classes and Objects)

Thanks for the reading material, I completely understand about not wasting time complaining about a teacher however when said teacher forces you to attend lectures/seminars and spends around 2 hours talking about his past history with programming, the history of Apple and Microsoft then asks you to do some coursework for him without even explaining the material beforehand...it gets frustrating.

Originally Posted by KevinWorkman

You're preaching to the choir on that one. But try reading through the tutorial and taking another look at the assignment. If you're still having trouble, post what you've tried along with any errors you get, and we'll go from there.

Went out last night instead of doing thus but sat down this morning and read through all the advice here and the links, sucessfully got it working

 
class Counter
{
public int count = 0;
    //Return the value of the counter
    public long getValue(){
        return count;
    }
    //Reset the value of the counter to 0
    public void reset(){
        count = 0;
    }
    //Increment the counter by 1
    public void inc(){
        count++;
    }
    //Decrement the counter by 1
    public void dec(){
        count--;
    }
}

Very simple in the end, never been told about public variables and such.