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| package com.java.collection; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set;
public class CollectionDemo { public static void main(String[] args) {
Collection c = new HashSet();
List list = new ArrayList();
Set set = new HashSet();
Map<String, String> map = new HashMap<String, String>();
} }
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