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
In Java, to check whether two objects are the same or not, we often use the equals() method to do this! To compare and sort two objects in an array or list, we can use the Comparable interface. In this tutorial, I will talk more… Read More
In Java, we have two types of blocks: static block and instance block, and can declare many different constructors. What is the order of execution of blocks, constructors in Java? In this tutorial, let’s learn together! A static block is a block of code that… Read More
We had a look at how to read an XML file using the DOM in Java in the previous tutorial. This tutorial introduces you to another way to read XML file faster and use less memory than the DOM, which is using SAX in Java.… Read More
In this tutorial, I will guide you how to edit an XML file using the DOM through an example is to edit the XML file has the following content:
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<?xml version="1.0" encoding="UTF-8" standalone="no"?> <students> <student n0='1'> <name>John</name> <code>12345</code> <age>19</age> </student> </students> |
The information will be edited I will edit some things as follows: Correct student number… Read More
