Java: Get the element in a tree set which is less than or equal to the given element

Last update on March 12 2025 13:34:24 (UTC/GMT +8 hours)

Write a Java program to get the element in a tree set less than or equal to the given element.

Sample Solution:

Java Code:

import java.util.TreeSet;
import java.util.Iterator;
  public class Exercise11 {
  public static void main(String[] args) {
 // creating TreeSet 
   TreeSet <Integer>tree_num = new TreeSet<Integer>();
   TreeSet <Integer>treeheadset = new TreeSet<Integer>();
     
   // Add numbers in the tree
   tree_num.add(10);
   tree_num.add(22);
   tree_num.add(36);
   tree_num.add(25);
   tree_num.add(16);
   tree_num.add(70);
   tree_num.add(82);
   tree_num.add(89);
   tree_num.add(14);
   
   System.out.println("Less than or equal to 86 : "+tree_num.floor(86));
   System.out.println("Less than or equal to 29 : "+tree_num.floor(29));
   }    
}

Sample Output:

Less than or equal to 86 : 82                                          
Less than or equal to 29 : 25

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to use the floor() method on a TreeSet to retrieve the greatest element less than or equal to a given value.
• Write a Java program to implement a custom method that searches for the element ≤ a specified value using iteration.
• Write a Java program to compare the floor() method with a manual search and print both results for verification.
• Write a Java program to use Java streams to filter and find the maximum element that is less than or equal to a given value.

Java Code Editor:

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