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Thread: setCursor() Not Accepting java.awt.Cursor

  1. #1
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    Default setCursor() Not Accepting java.awt.Cursor

    I'm confounded by an error I'm getting when I try to use the setCursor() method from within a JPanel.

    import javax.swing.*;
    import java.awt.event.*;
    import java.awt.Cursor;
     
    public class TestPanel extends JPanel {
        public TestPanel() {
            this.AddMouseListener();
        }
        public void AddMouseListener() {
            this.addMouseListener(new MouseAdapter(){
                public void mouseClicked(MouseEvent e) {
                    this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
                }
            });
        }
    }

    When I try to compile this, I get the error:
    cannot find symbol - method SetCursor(java.awt.Cursor); maybe you meant: getCursor() or setCursor(Cursor)
    Is there a Cursor class other than the java.awt.Cursor class? I can't find any trace of another Cursor in the Java API. Even then, why would they be incompatible?
    Last edited by Destro; July 14th, 2012 at 06:16 PM.


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: setCursor() Not Accepting java.awt.Cursor

    The keyword 'this' always refers to the enclosing object. In the context of the inner class listener you have written, 'this' refers to the MouseListener. To refer specifically to the outer class, use the syntax MyOuterClassName.this (eg TestPanel.this.setCursor(...))

  3. The Following User Says Thank You to copeg For This Useful Post:

    Destro (July 14th, 2012)

  4. #3
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    Default Re: setCursor() Not Accepting java.awt.Cursor

    That makes sense. Thank you.

    I had no idea you could reference nested objects in such a way.

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