WeakHashMap void clear() method Example Program

Removes all of the mappings from this map. The map will be empty after this call returns.

Program

package com.candidjava;

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

/* 
 * @author : Mohan 
 * @description : Removes all of the mappings from this map using clear() method
 */
public class WeakHashMapClear {

	public static void main(String[] args) {

		Map<String, String> weakHashMap = new WeakHashMap<String, String>();

		weakHashMap.put("0", "mohan");
		weakHashMap.put("1", "karthi");
		weakHashMap.put("2", "kamal");
		weakHashMap.put("3", "hari");

		System.out.println("Contents in the Map" + weakHashMap);
		System.out.println("Clear the Map");

		weakHashMap.clear();
		System.out.println("Contents in the Map" + weakHashMap);
	}

}

Output

Explanation

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