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class Super {
public float getNum(){
return 3.0f;
}
}
public class Sub extends Super{
public double getNum(float d){
return 0.0d;
}
}
class Parent {
public int change(){
return 0;
}
}
class Child extends Parent{
public double change(){
return 0;
}
}
class Parent {
public int change(){
return 0;
}
}
class Child extends Parent{
public int change(){
return 0;
}
}