Hey Tea Lovers. On 22 March 2022, JDK 18 or Java 18 is released to the public (from Oracle). Java 18 does not contain any major updates that will change how we code, but it does have something very interesting. Few of the updates are in the incubator or preview mode. So for this article, I will be mostly focused on the core library addition. Don’t worry I will add a summary of other updates as well. ...
Hey, Tea Lovers! Today we will take a look at the basic but tricky interview question, Call By Value & Call By Reference in Java. Both beginners and experienced developers get this question in interviews. It’s a technical interviewer’s favorite question. This post is one of the many in the series of Interview Questions, where we don’t just hang you with one line answer, but rather try to explain it so that it gets fits into your head. ...
Hey, tea lovers! Today, we will talk about the JDBC, the code which connects Java code to the realm of the databases, and the best practices of JDBC to achieve greatness in the performance of database operations. We will talk about the best practices as we talked about in “ What’s In A Name: Java Naming Conventions” but this time, it is about the JDBC best practices. These are the small tweaks you can do to your code that, not only makes it much faster but also makes your code less horrific. It will be like a list to improve the JDBC or we can say, handle the database like a pro. So let us start the adventure. ...
Hey, Tea Lovers! Today I will briefly talk about the latest release of Java 16 on March 16, 2021. I will talk about the key takeaway from the features and improvements, which I think will affect the day-to-day life of a Java developer. This post is heavily based on the press release “Oracle Announces Java 16”. If you want to see it in more detail, you can check out the press release here. ...
Hey, Tea lovers! In this post, we will have a look at how we can easily install the latest Java or JDK on the Ubuntu system. It will be a very quick and small post. Before You Start I will be installing Open JDK, and I will show the installation for JDK 8, JDK 11, and JDK 14 on Ubuntu. For the Windows user, I have already written a post on " Install Latest or Any Java Version in 3 Simple Steps: Windows". ...
Hey, Tea Lovers! Today let’s look at the most asked interview question, IS-A.)& HAS-A relationship. Both beginners and experienced people get this question in their interviews. This post is one of the many in the series of Interview Questions, where we don’t just hang you with one line answer, but rather try to explain it so that it gets fits into your head. I know you are in a hurry to prepare for the interview, so I will make this post as short as possible, So prepare your cup of tea to sip and code. ...
Hey, Tea Lovers! Today let’s look at the most asked interview question, Comparable vs Comparator. Both beginners and experienced people get this question in their interviews. This post is one of the many in the series of Interview Questions, where we don’t just hang you with one line answer, but rather try to explain it so that it gets fits into your head. I know you are in a hurry to prepare for the interview, so I will make this post as short as possible, So prepare your cup of tea to sip and code. ...
Hey, Tea Lovers! Today let’s look at the most asked, tricky, and fumbled interview question i.e. What is the difference between final, finally, and finalize in Java? Most beginners face this question. The thing is, only their names are the same the work is completely unrelated. I know you are in a hurry to prepare for the interview, so I will make this post as short as possible. But before reading, prepare your cup of tea to sip and code. ...
Hey! Tea lovers. Let us talk about the first baby step we take into the Java world. And that’s the installation of Java Development Kit aka JDK. There are only 3 steps to set up JDK, without the installer. You can have multiple versions of JDK at the same time and switch between them very easily. Prepare your tea and let us see those 3 magical steps. TL;DR This post discusses the installation of JDK on the Windows system. We will be discussing other operating systems such as Ubuntu and Centos. The JDK I am utilizing for the aforementioned post is OpenJDK 13. We have JDK 14 as well but it’s an early release and might have bugs. So we won’t be using that. ...
Hey, tea lovers! Have you ever heard about connection pooling in JDBC or HikariCP? If not, no worries at all, that is what this post is all about. We will talk about all the things about the JDBC connection pool and its implementation using HikariCP. HikariCP is one of the fastest connection pooling available in the market for JDBC connections. It makes connection pooling very easy. get ready to learn more about this beast. But before, make your tea to sip and learn. And for the example used in the post, you can find it on GitHub here or the full project here. ...