Java TreeMap

Home
Python
AI
Machine learning
Deep learning
Java
C
- C Programming
- Data Structure Using C
DAA
Power BI
UI Design
PHP
Git
RDBMS
SQL
Data Science
Online IDEs

Java Introduction

Java Datatype

Java Operators

Java-Flow Control

Java Array

Java String

Java Regular Expression

Java OOPS Concept

Java Inheritance

Java Interface

Java Serialization & Externalization

Java Package

Java Exception Handling

Java Multithreading

Java Collection Framework

Java Applet

Java AWT

Java Swing

Introduction to Java8

Java Design Pattern

Java RMI

Java Networking

Introduction to Java 9

Introduction to Java 10

Introduction to Java 11

Introduction to Java 12

Java Project

JDBC Tutorials

• A TreeMap contains values based on the key.
• It implements the NavigableMap interface.
• It contains only unique elements.
• It cannot have null key but can have multiple null values.
• Insertion order is preserved.

Let's see a program:

TreeMapDemo.java:

import java.util.*;
classTreeMapDemo
{ 
	public static void main(String args[])
	{ 
		TreeMaphm=new TreeMap();  
		hm.put(100,"Tapuuu");
		hm.put(102,"Silan");
		hm.put(101,"Sushh");
		hm.put(103,"Manu");
		for(Map.Entry m:hm.entrySet())
		{ 
			System.out.println(m.getKey()+" "+m.getValue()); 									   
		} 
	}
}

Output

100 Tapuuu
101 Sushh
102 Silan
103 Manu

HashMap vs. TreeMap:

HashMap is can contain one null key.	TreeMap can not contain any null key.
HashMap maintains no order.	TreeMap maintains ascending order.

About the Author

Silan Software

Silan Software is one of the India's leading provider of offline & online training for Java, Python, AI (Machine Learning, Deep Learning), Data Science, Software Development & many more emerging Technologies.

We provide Academic Training || Industrial Training || Corporate Training || Internship || Java || Python || AI using Python || Data Science etc

facebook.com/pythontpoints

twitter.com/pythontpoints

instagram.com/pythontpoints

PreviousNext

Join our newsletter for the latest updates.

About us

pythontpoints.com : The best online tutorial to learn Python, Machine Learning, Deep Learning, Data Science, Power BI, SQL & Java.
We Provide best Academic training, Corporate training, Project & Internship.

Our Services

Corporate & Academic Training
Website Designing
Website Development
Digital Marketing
Project & Thesis

Contact Us

Plot No-741, 2nd Floor, Jayadev Vihar, 751013, Bhubaneswar, Odisha
Call :
0674-2361252
Mail : info@pythontpoints.com
Contact Us
Privacy Policy

Our Courses

Our Tutorials