Passing a method as parameter

You can either pass a JavaScript function and execute it using Rhino in Java 7 or create a Command interface and pass instances of it. Java doesn't have function objects outside of classes.

public interface Command {
    void execute();
}

Or you can pass either a Runnable or Callable implementation of your choice.

You can use lambdas from Java 1.8, an "early access" version is available at https://jdk8.java.net/lambda/

You can only pass objects or primitives in Java, passing functions as parameter in java isn't possible

You cannot do it in java like in C#. In java you you need to define interface and pass it as parameter. Last say interface SetClickInterface{ void setClick(); }

    public class MyClass extends JButton{
    private SetClickInterface clickMethod;


public void setSetClickInterface (SetClickInterface click)
{
    this.clickMethod= click;
}
{
this.addMouseListener(new MouseListener() {
        public void mouseClicked(MouseEvent arg0) {
            if(clickMethod != null)
                {
                    clickMethod.setClick();
                }
        }
        public void mouseEntered(MouseEvent arg0) {}
        public void mouseExited(MouseEvent arg0) {}
        public void mousePressed(MouseEvent arg0) {}
        public void mouseReleased(MouseEvent arg0) {}
    });
}
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