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This tutorial explains the function in Java console.log() and how to display logs to the console in Java. console.log() is a function in JavaScript that is used to display log messages to the browser console. There is no such message in Jav...

In this tutorial, we will look at two ways to clear the console screen in Java. We will learn how to execute Java clear screen commands at runtime through examples. Clearing the console using ANSI escape codes in Java We can use special cod...

In this article, we will discuss Java Class File Editor, a tool created in Java to edit Java compiled classes. We can decompile Java classes after creating them and view them, but we need a tool like Java Class File Editor to modify them. F...

In this article, you will learn the basic terminology of Java programming language such as local variables, input parameters, class fields, and instance fields in Java. Local variables in Java Variables whose scope is bound to a block, meth...

This tutorial explains how to compile multiple java files using a single command in Java. Compilation is a term used to refer to the process of converting java source code into bytecode using JDK. To execute any Java file, we need to follow...

This tutorial shows you how to check if two characters are equal in Java. In Java, we can use the equals( == ) operator or the Character compare() equals() method of the Character class to compare two characters. If you are working with pri...

In the field of computer science, mutual exclusion or mutex is known as the property of concurrency control. Every computer uses a minimum sequence of program instructions called a thread. At a time, the computer works on one thread. For be...

This tutorial explains the difference between size and length in Java. We have also listed some sample codes to help you understand the topic. Java has a size() method and a length property. Beginners may think that they are interchangeable...

This tutorial explains how to get the user's home directory in Java and lists some sample code to guide you through the topic. For a multi-user operating system, each user has a file system directory; this directory is called the user's hom...

This tutorial explains the key differences between Map and in Java HashMap . In Java, Map is an interface for storing data in key-value pairs, and HashMap is Map an implementation class of the interface. Java has several classes ( TreeHashM...

This article explains how to use the two methods contained in the HashMap class in Java - update put() and replace() update the values ​​in a HashMap. hashmap.put() Update the value in Hashmap in Java using When we want to HashMap inser...

This tutorial explains how to print HashMap an element in Java and also provides some sample code to understand the topic. HashMap It is Map an implementation class of the interface and is used to collect elements into key and value pairs....

This tutorial explains how to Mapkey, value sort pairs by value in Java and lists some sample codes to understand it. There are several ways to Map sort . Here we use sort() the , sorted() method, and Comparator interface. Let's look at an...

This article explains how to convert a Hashmap to a JSON object in Java. We will see a detailed example of creating a hashmap and then converting it to a JSON object. Hashmap and JSON are both very commonly used by developers as they help u...

This tutorial explains how to create program delays in Java and gives some sample code to understand it. There are several ways to create a time delay, such as TimeUnit.sleep() ,, ScheduleAtFixedRate() etc. Thread.sleep() Let's look at an e...