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package p;
public class A {
public String runall(Runnable[] runnables) {
return "A";
}
public static void main(String[] args) {
Runnable r1 = null, r2 = null;
System.out.println(new A().runall(new Runnable[] { r1, r2 }));
System.out.println(new Sub().runall(new Runnable[] { r1, r2 }));
System.out.println(new Sub().runall(r1, r2));
System.out.println(new Sub2().runall(new Runnable[] { r1, r2 }));
}
}
class Sub extends A {
public String runall(Runnable... runnables) {
return "Sub, " + super.runall(runnables);
}
}
class Sub2 extends Sub {
public String runall(Runnable[] runnables) {
return "Sub2, " + super.runall(runnables);
}
}
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