Java tutorial
import java.util.Hashtable; public class Main { public static void main(String args[]) { Hashtable<Integer, String> htable = new Hashtable<Integer, String>(10, 0.75F); // put values into the table htable.put(1, "A"); htable.put(2, "B"); htable.put(3, "C"); htable.put(4, "from java2s.com"); // check table content System.out.println("Hash table content: " + htable); // clear the table htable.clear(); // check content after clear System.out.println("Hash table content after clear: " + htable); } }