Java Hashtable - clone() Method
The java.util.Hashtable.clone() method returns a shallow copy of this hashtable. All the structure of the hashtable itself is copied, but the keys and values are not cloned.
Syntax
public Object clone()
Parameters
No parameter is required.
Return Value
Returns a shallow copy of this hashtable.
Exception
NA.
Example:
In the example below, the java.util.Hashtable.clone() method returns a shallow copy of the given hashtable.
import java.util.*;
public class MyClass {
public static void main(String[] args) {
//creating hashtable
Hashtable<Integer, String> Htable1 = new Hashtable<Integer, String>();
//populating Htable1
Htable1.put(101, "John");
Htable1.put(102, "Marry");
Htable1.put(103, "Kim");
Htable1.put(104, "Jo");
//create a copy of Htable1 into Htable2
Object Htable2 = Htable1.clone();
//print the content of Htable2
System.out.print("Htable2 contains: "+ Htable2);
}
}
The output of the above code will be:
Htable2 contains: {104=Jo, 103=Kim, 102=Marry, 101=John}
❮ Java.util - Hashtable
