| 
  
 
 import java.util.Hashtable;
 
 public class Main{
 public static void main(String[] s) {
 Hashtable<String,String> table = new Hashtable<String,String>();
 table.put("key1", "value1");
 table.put("key2", "value2");
 table.put("key3", "value3");
 
 Hashtable<String,String> table2 = new Hashtable<String,String>();
 table2.put("key4", "value4");
 table2.put("key5", "value5");
 table2.put("key6", "value6");
 
 table2.putAll(table);
 
 System.out.println(table2);
 }
 }
 
 
 
 
 |