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An Internet Protocol (IP) address is an identifier for each device connected to a TCP/IP network. This identifier is used to identify and locate nodes in the middle of communication. The IP address format, such as 127.0.0.0, is a human-read...

In this tutorial, we will see how to get the IP address and host name using Java API. InetAddress Get the host name in Java using The package java.net contains classes for handling the IP address and host name of the current machine InetAdd...

getResource() This tutorial will demonstrate how to use the function to get the resource URL and read the resource file in Java . getResource() Use the function to get the resource URL in Java We will use the method in Java getResource() to...

In this tutorial, we will see how to while detect EOF( End OF File ) in Java using a loop. We will also discuss developing a program that continues reading content until it reaches the end of a file. From a programming perspective, EOF is a...

In Java, the heap space is mainly used for garbage collection and allocating memory for objects. A default heap space is allocated when JVM is installed on our machine, but it may be different. The following points show how we can increase...

A min heap is a heap in which every internal node is less than or equal to the value of its child nodes. We will see in the following points how to implement a min heap with and without using a library. Minimal heap implementation in Java w...

In this article, we will implement a max heap and a min heap using PriorityQueue the class. We will also demonstrate inserting and removing elements from the heap. Introduction to Min-Max Heap in Java Heap is a tree-based data structure, wh...

Java Date encapsulates the current time and date. The Date class does this with the help of two constructors - Date() and Date(long millisec) constructor. We use Date() the constructor to initialize the object with the current time and date...

This tutorial explains - the role of the arrow operator ( ) in Java and lists some sample code to understand the topic. In Java 8, a new feature lambda expression was added, and the arrow operator appeared in Java to form lambda expressions...

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...

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...