java.util.Hashtable.get() Method


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


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

public V get(Object key)


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.


NullPointerException − This is thrown if the key is null.


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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