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Thread: Help With Accessing methods from other classess

  1. #1
    Join Date
    Sep 2004

    Help With Accessing methods from other classess

    Okay I've been given this problem, I'm using software called BlueJ and I think it sucks, I think it sucks because it has a lack of examples of what we need to work, I would like to ask with this program I have, How do I access methods from one class to another, I think this is called polymorphism if I'm correct?

    Okay the other class is Called HistogramUI

    It has these methods in it
    public void setVisible() { }
    public void paint(Graphics graphics) { }
    private int getHeight(int int0, int int1) { return 0;}
    public void setMax(int int0) { }
    public void setMedian(double double0) { }
    public void setMode(String string) { }
    public void setMean(double double0) { }
    public void setRollCount(int int0, int int1) { }
    How would I call these methods from the class below Histogram?

    Any Helps, Hints, Solutions Very needed on this program! Thanks Everyone

    public class Histogram

    public Histogram( long seed )


    * This method needs to call the HistogramUI methods to set up and
    * display a Histogram.
    public void displayHistogram()


  2. #2
    Join Date
    Jul 2005
    SW MO, USA
    HistogramUI hui = new HistogramUI(...); // Create an instance of the class
    hui.<put method name here>; // Call one of its methods

  3. #3
    Join Date
    Dec 2004
    San Bernardino County, California
    Polymorphism is not the ability to call another object's methods.

    Polymorphism is the ability to use one name to call a method or work with an object BUT you don't know exactly which implementation of the method [overriding] or which class or object [inheritance (extends) or interface (implements)] you'll be calling until "run time" - an example of "dynamic late binding" (the time at which a connection is made between caller and callee) which is allowed by Java.

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