In the previous tutorial, I showed you how to create a new directory in Java. In this tutorial, I will guide you with some ways to delete a folder! The first is that we can use the File object. Deleting a directory in Java using… Read More
I have introduced the method reference in the previous tutorial, in this tutorial, I introduce you another new concept: constructor reference. Like the method reference, the constructor reference is used to abbreviate the Lambda Expression expression. How is it in details? Suppose you are working… Read More
Method reference is a new Java concept from version 8. It comes with Lambda Expression, which makes code writing using Lambda Expression even short but still shorter in some cases. In this tutorial, let’s learn more about the method reference in Java! OK, let’s get… Read More
The default Java method introduced from Java 8 is to enable the ability to extend, improve an existing interface without breaking the previously implemented interface. How is it in details? Let’s learn together in this tutorial! OK, let’s start with the following example. For example,… Read More
In the Lambda Expression tutorials, I introduced you to the Functional Interface and its importance when using Lambda Expression in Java code. In this tutorial, I will talk more about Functional Interface! Definition of Functional Interface OK, let me first talk about the definition of… Read More
In Java, in addition to the StringBuilder object, we also have a StringBuffer object with the same functionality as the StringBuilder object, but in reality it is thread-safe. This means that only one thread can access our StringBuffer object at a time. Thread-safe ensures that… Read More
In addition to the charAt(), indexOf(), substring(), length() methods that work in the String object, StringBuilder has other main methods that we’ll cover in the following: The append() method adds a value at the end of the current string of the StringBuilder object. We can… Read More
We often use the StringBuilder object to build String object whose content is aggregated from a variety of conditions. In this tutorial, I will summarize the knowledge needed to work with the StringBuilder object! Initialize the StringBuilder object StringBuilder gives us 4 constructors to initialize… Read More
The “+” and “+ =” operators that are mentioned here have some special aspects when used with String object in Java. In this tutorial, I would like to present you those aspects! First of all, I need to say that the “+” and “+ =”… Read More
You have been learning about the primitive variable in Java in this tutorial and this tutorial, the reference variable in this tutorial. In this tutorial, we will learn more about these two types of variables when they are passed to a method in the form… Read More
