Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Java Collection, TreeMap Exercises: Associate the specified value with the specified key in a TreeMap

Java Collection, TreeMap Exercises: Exercise-1 with Solution

Write a Java program to associate the specified value with the specified key in a Tree Map.

Sample Solution:-

Java Code:

import java.util.*;  
public class Example1 {  
  public static void main(String args[]){  
   // Create a tree map
   TreeMap<Integer,String> tree_map=new TreeMap<Integer,String>();      
  // Put elements to the map 
  tree_map.put(1, "Red");
  tree_map.put(2, "Green");
  tree_map.put(3, "Black");
  tree_map.put(4, "White");
  tree_map.put(5, "Blue");
    
   for (Map.Entry<Integer,String> entry : tree_map.entrySet())
   {
    System.out.println(entry.getKey() + "=>" + entry.getValue());
   }
 }  
}

Sample Output:

1=>Red                                                                 
2=>Green                                                               
3=>Black                                                               
4=>White                                                               
5=>Blue

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Get a collection view of the values contained in this map.
Next: Copy a Tree Map content to another Tree Map content.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe