HashMap: size() : HashMap « java.util « Java by API






  1. Java by API
  2. java.util
  3. HashMap

HashMap: size()

  

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

public class Main{
  public static void main(String[] a) {
    Map<String,String> map = new HashMap<String,String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    System.out.println(map.size());
  }
}








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