Question

I know the piece of code below is far from perfect but it does what I want it to do. My problem is that I can’t understand what object is the “this” keyword pointing at.

public class Browser extends JFileChooser{

  public File browser_creation(){

    int r;

    JFileChooser browser1 = new JFileChooser();        
    r = browser1.showOpenDialog(this);


    if (r == Browser.APPROVE_OPTION) {
        return browser1.getSelectedFile();
    }
    else {
        return null;
    }
  }  
}

Answer 1

this points to the current instance of Browser. In other words, it is referring to the object that it is being executed in.

Here is some more information from the Java tutorials: http://download.oracle.com/javase/tutorial/java/javaOO/thiskey.html