Use treemap : HashTable Map « Collections Data Structure « Java

1. Java
2. Collections Data Structure
3. HashTable Map

Use treemap

     

import java.util.Map;
import java.util.TreeMap;

public class Freq {
  private static final Integer ONE = new Integer(1);

  public static void main(String args[]) {
    Map m = new TreeMap();

    m.put("a Key", "a Value");
    m.put("Java2s", "www.java2s.com");

    System.out.println(m.size() + " keys detected:");
    System.out.println(m);
  }
}


           
         
    
    
    
    
  

Related examples in the same category

1.	Check if a particular key exists in Java Hashtable
2.	Check if a particular value exists in Java Hashtable
3.	Get Collection of Values from Java Hashtable
4.	Get Set view of Keys from Java Hashtable
5.	Get Size of Java Hashtable
6.	Iterate through keys of Java Hashtable
7.	Remove all values from Java Hashtable
8.	Scan the content of a hashtable
9.	Remove value from Java Hashtable
10.	Sort keys in an Hashtable
11.	Associates keys with values
12.	Iterate through values of Java Hashtable
13.	A simple Map implementation
14.	Hash table with separate chaining
15.	Hash table with linear probing
16.	Hash table with double hashing
17.	Working with Key-Value Pairs in a Hashtable
18.	Demonstrate the Hashtable class, and an Enumeration
19.	Demonstrate the HashMap class, and an Iterator
20.	Soft HashMap
21.	MultiMap extends AbstractMap
22.	Array Map extends AbstractMap
23.	Demonstrating the WeakHashMap
24.	Sorting Elements in a TreeMap
25.	What you can do with a TreeMap
26.	A Map implemented with ArrayLists
27.	Simple demonstration of HashMap
28.	HashMap
29.	Caching Hashtable
30.	Hashtable that supports mostly-concurrent reading, but exclusive writing.
31.	Lru Hashtable
32.	Bucketized Hashtable
33.	Custom hash table based on customized array