Java: Compare two tree sets

Last update on May 22 2025 13:15:42 (UTC/GMT +8 hours)

8. Compare TreeSets

Write a Java program to compare two tree sets.

Sample Solution:

Java Code:

import java.util.TreeSet;
import java.util.Iterator;

  public class Exercise8 {
  public static void main(String[] args) {
  // Create a empty tree set
        TreeSet<String> t_set1 = new TreeSet<String>();
     // use add() method to add values in the tree set
          t_set1.add("Red");
          t_set1.add("Green");
          t_set1.add("Black");
          t_set1.add("White");
          System.out.println("Free Tree set: "+t_set1);

          TreeSet<String> t_set2 = new TreeSet<String>();
          t_set2.add("Red");
          t_set2.add("Pink");
          t_set2.add("Black");
          t_set2.add("Orange");
          System.out.println("Second Tree set: "+t_set2);
          //comparison output in tree set
          TreeSet<String> result_set = new TreeSet<String>();
         for (String element : t_set1){
             System.out.println(t_set2.contains(element) ? "Yes" : "No");
          }      
     }
}

Sample Output:

Free Tree set: [Black, Green, Red, White]                              
Second Tree set: [Black, Orange, Pink, Red]                            
Yes                                                                    
No                                                                     
Yes                                                                    
No

Flowchart:

For more Practice: Solve these Related Problems:

Write a Java program to compare two TreeSets for equality by checking if they contain the same elements in the same order.
Write a Java program to compute the union and intersection of two TreeSets and then compare the sizes of the results.
Write a Java program to use Java streams to compare two TreeSets and return a boolean indicating whether they are identical.
Write a Java program to compare two TreeSets of custom objects using a custom comparator for equality.

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