TreeSet in Java

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In Java Tree Set is a data structure available in the java collection framework.

Contents hide
1 What is Tree Set
2 Properties of TreeSet
3 TreeSet Java Example
4 Similar Java Tutorials

What is Tree Set

A TreeSet is a implementation of NavigableSet in java, which means TreeSet is a sorted, navigable set of element. TreeSet data structure is based on red black tree data structure.

Properties of TreeSet

  • Duplicate objects are not allowed
  • Insertion order not preserved
  • Heterogeneous objects are not allowed
  • Null insertion is possible but at most one.
  • All elements in TreeSet are sorted in natural order or according to some specified comparator.

TreeSet Java Example

import java.util.TreeSet;

public class TreeSetDemo {
    public static void main(String[] args) {
        TreeSet<Integer> treeSet = new TreeSet<>();
        // Adding elements in the TreeSet
        treeSet.add(12);
        treeSet.add(42);
        treeSet.add(26);
        treeSet.add(2);
        // printing the TreeSet element(sorted element)
        System.out.println(treeSet);
        // removing elements from TreeSet
        treeSet.remove(12);
       // updated TreeSet
        System.out.println(treeSet);
    }
}
TreeSet Java Example

Similar Java Tutorials

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