java.util.Hashtable.clone() Method


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Description

The clone() method is used to create a shallow copy of this hashtable.

Declaration

Following is the declaration for java.util.Hashtable.clone() method.

public Object clone()

Parameters

  • NA

Return Value

The method call returns a clone of the hashtable.

Exception

  • NA

Example

The following example shows the usage of java.util.Hashtable.clone()

package com.tutorialspoint;

import java.util.*;

public class HashTableDemo {
   public static void main(String args[]) {
   // create two hash tables 
   Hashtable htable = new Hashtable();
   Hashtable htableclone = new Hashtable();

   // put values into the table
   htable.put(1, "A");
   htable.put(2, "B");
   htable.put(3, "C");
   htable.put(4, "D");
      
   // check table content
   System.out.println("Original hash table content: "+htable);
      
   // clone hash table
   htableclone=(Hashtable)htable.clone();
      
   // check content after clone
   System.out.println("Clone table content: "+htableclone);      
   }    
}

Let us compile and run the above program, this will produce the following result.

Original hash table content: {4=D, 3=C, 2=B, 1=A}
Clone table content: {4=D, 3=C, 2=B, 1=A}

java_util_hashtable.htm

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