Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.HashMap;
import java.util.Map;
import java.util.WeakHashMap;

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

        hashMap.put("1", "first");
        hashMap.put("2", "two");
        hashMap.put("3", "from java2s.com");
        Map<String, String> weakHashMap = new WeakHashMap<String, String>(hashMap);
    }
}