Menu
I'm just curious. Is there a way to access parent in anonymous class that is inside another anonymous class?
I make this example create a JTable subclass (anonymous class) override changeSelection and inside i create another anonymous class.
MCVE:
public class Test{
public static void main(String args []){
JTable table = new JTable(){
@Override
public void changeSelection(
final int row, final int column,
final boolean toggle, final boolean extend) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
super.changeSelection(row, column, toggle, extend);
//more code here
}
});
}
};
}//end main
}//end test
How can i refer to super.changeSelection(..) ?
436
If you want your inner class to access outer class instance variables then in the constructor for the inner class, include an argument that is a reference to the outer class instance. The outer class invokes the inner class constructor passing this as that argument.
Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class.
Inner classes can even access the private variables/methods of outer classes.
Inner class can extend it's outer class. But, it does not serve any meaning. Because, even the private members of outer class are available inside the inner class. Even though, When an inner class extends its outer class, only fields and methods are inherited but not inner class itself.
Unfortunately, you will have to give a name to the outer anonymous class:
public class Test{
public static void main(String args []){
class Foo extends JTable {
@Override
public void changeSelection(
final int row, final int column,
final boolean toggle, final boolean extend) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
Foo.super.changeSelection(row, column, toggle, extend);
//more code here
}
});
}
};
JTable table = new Foo();
}//end main
}//end test
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
