java.util.Hashtable.get() Method

Description

The get(Object key) method is used to get the value to which the specified key is mapped in this hashtable.

Declaration

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

public V get(Object key)

Parameters

key − This is the key in the hashtable.

Return Value

The method call returns the value to which the key is mapped in this hashtable.

Exception

NullPointerException − This is thrown if the key is null.

Example

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

package com.tutorialspoint;

import java.util.*;

public class HashTableDemo {
   public static void main(String args[]) {
      
      // create hash table 
      Hashtable htable1 = new Hashtable();      

      // put values in table
      htable1.put(1, "A");
      htable1.put(2, "B");
      htable1.put(3, "C");
      htable1.put(4, "D");

      // get values at key 3
      System.out.println("Values at key 3 is:"+htable1.get(3)); 
   }    
}

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

Values at key 3 is:C

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