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JavaGenMUB15.java

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import java.util.AbstractList;

import java.util.ArrayList;

import java.util.List;

public class JavaGenMUB15<T extends AbstractList<Number> & List<Number>> {

T value;

public JavaGenMUB15(T value) {

this.value = value;

}

public T getValue() {

return value;

}

public void setValue(T value) {

this.value = value;

}

public static void main(String[] args) {

ArrayList<Number> list = new ArrayList<>();

JavaGenMUB15<ArrayList<Number>> obj = new JavaGenMUB15<>(list);

obj.getValue().add(1);

obj.getValue().add(2);

obj.getValue().add(3);

obj.getValue().add(4);

System.out.println(obj.getValue());

obj.setValue(list);

obj.getValue().add(1.02f);

obj.getValue().add(2.02009);

obj.getValue().add(3);

System.out.println(obj.getValue());

}