How to return values from Slider to control in swing Java

Question

First I have implemented this class ColorValueSliderControl as described in this link ColorValueSliderControl

Now I have would like to return the values of this method of the Class TColor to another separated independant class

public class ColorValueSliderControl extends JFrame {
  public ColorValueSliderControl() {
    getContentPane().add(new TColor());
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(500, 500);
    setVisible(true);
  }
/*  Not needed 
   public static void main(String arg[]) {
    new ColorValueSliderControl();
  }*/
}
class TColor extends JPanel {
  ......
 //I want to return the result of this method to another class
  public Color  setBackgroundColor() {
   float [] colors = new float[3];
   color = new Color(redValue, greenValue, blueValue, alphaValue);
   return(color); 
    ......


  }

Thank you

instantiate `TColor` in the class where you want the result of function, then call the function using that instance. — jack jay, Jan 13 '17 at 21:00
Also consider the approach examined [here](http://stackoverflow.com/q/2159803/230513). — trashgod, Jan 13 '17 at 21:05
@jackjay in a third random class completely not connected to the Color chooser — napi15, Jan 13 '17 at 21:10
Use some kind of observer pattern which allows other objects to monitor changes the occur in TColor. You could also use a JDialog instead of JFrame, which allow you to display a modal dialog, allow the user to value and when closed you could use a getter to get the actual value — MadProgrammer, Jan 13 '17 at 21:17
I will see what suits the best UI , thank you all for your advice — napi15, Jan 13 '17 at 21:20
1) `ColorValueSliderControl` See also [`JColorChooser`](http://docs.oracle.com/javase/8/docs/api/javax/swing/JColorChooser.html) 2) Generally it's better to simply use instances of frames and panels, than to extend them — Andrew Thompson, Jan 14 '17 at 03:03

score 0 · Accepted Answer · answered Jan 15 '17 at 07:10

I did solve my own problem , what I did is simply implement the color panel into my existing J Frame and it was much easier go get result of the chosen color by using getter and setter , and to update the color all I needed is use the existing Listener that exist in TColor class

How to return values from Slider to control in swing Java

1 Answers1