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Java Collection, TreeMap Exercises: Search a value in a Tree Map

Java Collection, TreeMap Exercises: Exercise-4 with Solution

Write a Java program to search a value in a Tree Map.

Sample Solution:-

Java Code:

import java.util.*;  
public class Example4 {  
   public static void main(String args[]){  
  
  // Create a tree map
   TreeMap<String,String> tree_map1=new TreeMap<String,String>();      
  
  // Put elements to the map 
  tree_map1.put("C1", "Red");
  tree_map1.put("C2", "Green");
  tree_map1.put("C3", "Black");
  tree_map1.put("C4", "White"); 
    
 if(tree_map1.containsValue("Green")){
            System.out.println("The TreeMap contains value Green");
        } else {
            System.out.println("The TreeMap does not contain value Green");
        }
        if(tree_map1.containsValue("Pink")){
            System.out.println("The TreeMap contains value Pink");
        } else {
            System.out.println("The TreeMap does not contain value Pink");
        }
    }
}

Sample Output:

The TreeMap contains value Green                                       
The TreeMap does not contain value Pink

Java Code Editor:

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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