Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Map;
import java.util.WeakHashMap;
import java.util.Set;

public class Main {
    public static void main(String[] args) {
        WeakHashMap<String, String> weakHashMap = new WeakHashMap<String, String>();

        weakHashMap.put("1", "first");
        weakHashMap.put("2", "two");
        weakHashMap.put("3", "from java2s.com");

        // printing the contents of the Map
        System.out.println("Contents of the Map");
        System.out.println(weakHashMap);

        // populating the set
        Set set = weakHashMap.keySet();
        System.out.println("Contents of the set");
        System.out.println(set);
    }
}