Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

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");

        // check key value 
        System.out.println("Checking value for key 1");
        System.out.println(weakHashMap.containsKey("1"));
    }
}