Example usage for java.util WeakHashMap clear

Introduction

In this page you can find the example usage for java.util WeakHashMap clear.

Prototype

public void clear() 

Source Link

Document

Removes all of the mappings from this map.

Usage

From source file:Main.java

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");

    // print the contents  
    System.out.println("Contents in the Map");
    System.out.println(weakHashMap);

    // call clear() method
    System.out.println("Clear the Map");
    weakHashMap.clear();

    // again print the contents
    System.out.println("Contents in the Map");
    System.out.println(weakHashMap);
}

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