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// Copyright 2007 The Android Open Source Project
/**
* Return stuff.
*/
public class Main {
public static void main(String[] args) {
System.out.println("pick 1");
pickOne(1).run();
System.out.println(((CommonInterface)pickOne(1)).doStuff());
System.out.println("pick 2");
pickOne(2).run();
System.out.println(((CommonInterface)pickOne(2)).doStuff());
System.out.println("pick 3");
pickOne(3).run();
}
public static Runnable pickOne(int which) {
Runnable runme;
if (which == 1)
runme = new ClassOne();
else if (which == 2)
runme = new ClassTwo();
else if (which == 3)
runme = new ClassThree();
else
runme = null;
return runme;
}
}
class ClassOne implements CommonInterface, Runnable {
public void run() {
System.out.println("one running");
}
public int doStuff() {
System.out.println("one");
return 1;
}
}
class ClassTwo implements CommonInterface, Runnable {
public void run() {
System.out.println("two running");
}
public int doStuff() {
System.out.println("two");
return 2;
}
}
class ClassThree implements Runnable {
public void run() {
System.out.println("three running");
}
}
interface CommonInterface {
int doStuff();
}
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