Inner Classes

[gmioannou]

What is the need of inner classes?

[JosAH]

Have a look at this example:

[code=java]
public class Star {

private String name;

public Star(String name) { this.name= name; }

public class Planet {

private String name;

public Planet(String name) { this.name= name; }

public class Moon {

private String name;

public Moon(String name) { this.name= name; }

public String toString() { return name+" (orbiting "+Planet.this+" )"; }
}

public String toString() { return name+" (orbiting "+Star.this+")" ; }
}

public String toString() { return name; }

public static void main(String[] args) {

System.out.prin tln(new Star("sun").new Planet("earth") .new Moon("moon"));
}
}
[/code]

kind regards,

Jos

[gmioannou]

Thanks, Very helpfull...

[BigDaddyLH]

A more prosaic example, from the Swing tutorial:

Event Listener