Page 7 | Java Blog - Java News and Learning posts on CodeGym

Jesse Haniel Strings in Java
February 20, 2025 at 8:04 AM
Java String charAt()The Java string class charAt() method returns the character at the specified index of a string. This specified index is provided as a parameter and it ranges from 0 to n-1, where n represents the length of the string...
2/20/25
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John Selawsky Java Classes
February 19, 2025 at 3:16 PM
Java.lang.Integer Class Java data types can be conditionally divided into two blocks: primitive and reference (classes). There are several primitive data types in Java, such as integers (byte, short, int, long), floating point numbers (float, double), logical data...
2/19/25
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Jesse Haniel Java Exceptions
February 19, 2025 at 12:17 PM
Java Try - Catch Errors can occur during program executing. It’s a common problem for every programmer, from a beginner to a real pro. Not all errors arise through the fault of the developer. Some of them are difficult to predict, and sometimes it’s not possible. For example...
2/19/25
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Milan Vucic Java IO & NIO
February 19, 2025 at 10:26 AM
Java FileReader Class The FileReader class extends the InputStreamReader class and is specifically designed for reading character-based data from a file. It is an ideal choice when working with text files and...
2/19/25
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Vasyl Malik Strings in Java
February 19, 2025 at 7:50 AM
Java String trim() method Even if the two strings look the same to you, they may not. For example, they may have leading and trailing spaces. The computer “sees” it, but we don’t. Java has a...
2/19/25
3377views
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Volodymyr Portianko Strings in Java
February 18, 2025 at 3:32 PM
Regular expressions in Java Regular expressions is a topic that programmers, even experienced ones, often postpone for later. But sooner or later, most Java developers have to process textual information. Most often, this means searching and editing text. Without regular expressions, effective and compact text-processing code is simply...
2/18/25
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Oleksandr Miadelets Java Math
February 18, 2025 at 11:17 AM
Generating random numbers in Java Random numbers are frequently used in programming for various applications, such as simulations, games, and cryptography. It could be, for example, password generators on websites or world generators in games...
2/18/25
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Vasyl Malik Java Collections
February 17, 2025 at 2:50 PM
Java Tuple Tuple are fundamental data structures found in many programming languages. In this article, we will delve into what tuples are, their various use cases, and explore how they can be...
2/17/25
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Aditi Nawghare Keywords in Java
February 16, 2025 at 4:37 PM
Static Variables in Java Static variables or class variables are shared among all instances of a class and can be accessed and modified without creating an instance of the class. Let’s take a deep dive to understand the uses and implementation of static variables in Java...
2/16/25
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Alex Vypirailenko Java Numbers
February 16, 2025 at 9:12 AM
Java double keyword The Java double keyword, as in any other language, indicates a computer format for representing a floating point number, occupying 64 bits, or 8 bytes, in memory. In this article we are going to talk...
2/16/25
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Milan Vucic Java Collections
February 15, 2025 at 2:03 PM
Java Deque Interface Java Deque is a data structure that combines an ordinary Queue and Stack. You may add and remove elements both to the head and to the tail of the Deque. In the “traditional” queue you add elements to the tail of the line (after the last element) and remove elements from the head of the queue...
2/15/25
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John Selawsky Inheritance in Java
February 15, 2025 at 12:27 PM
Java super Keyword The super keyword is used in different situations. Before getting started with this post we encourage you to learn about inheritance in Java for a better understanding. What is the super keyword in Java?..
2/15/25
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