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InnnerClass7.java

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import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

public class InnnerClass7<T> {

<T extends ArrayList<String> & List<String>> T test(T t){

int num = 23;

class MethodInner<V extends HashSet<String> & Set<String>> {

public void print() {

System.out.println("This is method inner class " + num);

}

}

MethodInner<HashSet<String>> inner = new MethodInner<HashSet<String>>();

inner.print();

return t;

}

public static void main(String[] args) {

InnnerClass7<String> outer = new InnnerClass7<String>();

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

list.add("one");

list.add("two");

list.add("three");

list.add("four");

list.add("five");

System.out.println(outer.test(list));

}

}