Hello guys, I hope you all are doing well and having lots of fun reading and learning Java Collections together. Today we are here a meet again on our journey of Java. I hope you all have seatbelts buckled up as today it's gonna be an adventurous ride while learning something that is most used in many production applications, coding, and whatnot. Today's topic, TreeMap in Java is very important because it holds a very significant feature Java development kit provides. This is also one class which many Java developer doesn't pay attention but it is really used for many use cases. Most Java developer just keep their attention to ArrayList, HashSet, and HashMap and thus missing out on many cool Java collection classes like TreeMap, WeakHashMap, and LinkedHashMap which saw earlier.
How to delete multiple elements from a LinkedList in Java? SubList() Example
Hello guys, if you are looking for an easy way to remove a sub set of elements
from a LinkedList in Java then you have come to the right place. In the past,
I have shown you
how to sort a LinkedList in Java
and
how to create your own linked list implementation in Java
and in this article, I am going to introduce you with an interesting method
which can be used to delete a portion of LinkedList in Java in shot. Yes,
there is a method exists but not many Java developer knows about it. The
method is called subList() and you
can use this method with clear method in Java to delete a portion of linked
list in one shot.
How to use WeakHashMap in Java? Example Tutorial
Hello friends, we are here today again on our journey to Java. I hope everyone is fine and ready to board our train of knowledge. Today we are gonna learn something very interesting and very exciting. Today's topic will definitely be very useful in coding and programming. This topic would surely decrease your time complexity, and space requirements for any task very significantly :p So what's the wait? Let's start!
Top 20 Shell Scripting Interview Questions and Answers
Have you struggle with Shell Scripting interview questions before? Have you been having problems in finding out the kind of questions asked in a Shell Scripting interview? If you have experienced this then it is high time that you find a solution. You cannot lose that dream job anymore and yet you can find with ease all you require to pass your interview. If that interview is a few days away, worry no more because you will get before that panel fully prepared and ready for the day.
Difference between HashMap vs TreeMap vs LinkedHashMap in Java
Hello guys, if you are wondering when to use HashMap, TreeMap and LinkedHashMap in Java and want to understand difference between them then you are at the right place. Earlier, I have shared difference between HashSet, TreeSet, and LinkedHashSet and in this article, I will explain the difference between these three common Map implementation HashMsp, TreeMap, and LinkedHashMap. Though all three classes like HashMap, LinkedHashMap and TreeMap are
implementation of java.util.Map interface, there is some functional difference
between them. Perhaps most notable difference between them comes from their
iteration order. HashMap makes absolute no guarantee about in which order you
can iterate their keys, any application depending upon iteration order of
HashMap is fragile, because it can change anytime. In fact, in Java 7,
iteration order of HashMap is different than Java 6.
How to send Email in Java + Spring Framework? JavaMailSenderImpl Example Tutorial
Hello guys, if you are looking for a Java + Spring tutorial to send emails then you have come to the right place. Earlier, I have shared the free spring framework online courses, and today, I am going to share how to send Emails in the Java application using Spring and JavaMailSenderImpl class which makes it really easy to send emails from Java application. Email is an essential function of any enterprise Java application. Your application will need Email functionality to send reminders, bills, payments, confirmations, passwords, alerts, and several other kinds of system notifications.
How to set the logging level in Spring Boot application.properties - Example Tutorial
Hello guys, if you are wondering how to set the logging level on spring boot then you have come to the right place. In the past, I have shared the best Spring Boot courses and free courses to learn Spring MVC and in this article, I will share how to set logging levels like DEBUG and INFO in Spring Boot. How do we configure the logging level of our Spring boot application is one of the questions that arise when developing a large application. Because we need to trace errors, warnings, informational data when running our application and to this, Spring has introduced Spring boot logging configurations.
Top 20 UI and UX Design Interview Questions and Answers
Hello folks, if you are a fresher who want to start your career in UI and UX design or a UI or UX Designer and preparing for your next job and looking for
popular UI/UX interview questions for preparation then you
have come to the right place. Earlier, I have shared HTML Interview Question, CSS Interview Questions, web development questions, and JavaScript Interview Questions and in this article, I am going to share common UI and UX interview questions with answers. If you have worked in UI and UX design for quite sometime then you may know the answers of these questions but if you are new then you may need to go through these best UI and UX design courses to refresh you knowledge about essential UI and UX design concepts.
Spring Boot + Thymyleaf Project in Java? Example Tutorial
Hello guys, if you are looking for a Spring Boot and Thymyleaf example, tutorial, or a project then you have come to the right place. Thymyleaf is one of the most popular, modern, server-side Java template engine to generate HTML and XHTML content. Earlier, I have shared Spring Boot + Reactjs project, as well a complete project to create Spring Boot + REST and Spring Boot + Microservices and in this tutorial, you will learn about how to create a spring boot and thyme leaf application using the h2 database. So before moving to an example, let's discuss what is thymyleaf? Thymeleaf is a web application development library based on Java. It offers excellent support for providing XHTML/HTML5 in web applications.
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