Remove all values from HashMap in Java

Description

The following code shows how to remove all values from HashMap.

Example


/*  ww  w  . j  a v a 2s . c o  m*/
import java.util.HashMap;

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

    hMap.put("1", "One");
    hMap.put("2", "Two");
    hMap.put("3", "Three");

    hMap.clear();
    System.out.println(hMap.size());
  }
}

The code above generates the following result.





















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