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JavaGenMUB18.java

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import java.util.AbstractMap;

import java.util.Map;

import java.util.HashMap;

public class JavaGenMUB18<T extends AbstractMap<String,Number> & Map<String,Number>> {

T value;

public JavaGenMUB18(T value) {

this.value = value;

}

public T getValue() {

return value;

}

public void setValue(T value) {

this.value = value;

}

public static void main(String[] args) {

HashMap<String,Number> map = new HashMap<>() ;

JavaGenMUB18<HashMap<String,Number>> obj = new JavaGenMUB18<>(map);

obj.getValue().put("One", 1);

obj.getValue().put("Two", 2);

obj.getValue().put("Three", 3);

obj.getValue().put("Four", 4);

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

obj.setValue(map);

obj.getValue().put("FloatingVal1", 1.02f);

obj.getValue().put("FloatingVal2", 2.02009);

obj.getValue().put("FloatingVal3", 3);

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

}