Mastering Arrays For Coding Interviews in Java
Arrays are fundamental data structures in computer science and serve as building blocks for complex ones.
Differences Between JDK, JRE, and JVM?
Short answer JDK, JRE, and JVM are essential components of the Java platform, each serving a distinct purpose. Here are the key differences between them: 1. JDK (Java Development Kit): The JDK is used by developers to write, compile, and debug Java code. 2. JRE (Java Runtime Environment): End-users use
Difference Between String and char[] in Java
Short answer Strings String is an object with many helpful methods. String class in Java's standard library is designed to handle text as a sequence of characters. A string of characters (string object) is non-modifiable or immutable in Java. Once you've created it, you cannot modify it. This means when
What is an Object class in Java?
Short answer Object class is the super class of every class you can create. In Java, a class extends another class using the keyword extends. If you don't have any other class to extend, that's fine. The compiler will make your class extend the Object class. // your class class Template
What is the JVM? With Sketches and Examples
Short answer JVM stands for Java Virtual Machine. JVM is a virtual machine( a piece of software) that executes Java bytecode. It provides a runtime environment for executing Java applications. The above sketch explains how the same bytecode is run across multiple virtual machines on different operating systems. If someone
What Are Wrapper Classes in Java?
This is the most asked interview question! Why do we use wrapper classes to store data for a model class instead of primitives? What are wrapper classes? Primitive wrappers, also known as wrapper classes, are a set of classes in Java that provide an object representation for the primitive data
Why Are Wrapper Classes Preferred Over Primitives?
We know a class will have fields and methods to act on them in Java. The key thing about primitive data types is that they store data only. That is very cool, but if we want to do some operations, they cannot provide methods to operate on them. wrapper classes
📚 Top 10 Books Every Developer Should Read
A developer's journey is always upskilling to the latest tech stack and open-source projects. Pick any software language or framework, and it's all about your efforts to master a skill. Mastering a skill and gaining experience is a journey that requires dedication, practice, and a structured approach. Having the basics
Why Do Developers Prefer IntelliJ IDEA Over Other IDE's
IntelliJ IDEA is one of the most popular Integrated Development Environments (IDEs) available today for Java and Kotlin developers. This IDE makes development more productive and enjoyable. IntelliJ IDEA is the leading Java and Kotlin IDE. Why do developers prefer IntelliJ IDEA? Here are some reasons why IntelliJ IDEA is
How To Convert String To Integer in Java?
In Java, you can convert a String to a Integer object using valueOf(...) method provided by Integer wrapper. Before diving into String to Integer conversions, if you want to catch up on the basics of primitives and String to int conversions, please check the additional resources section. String to Integer