NoSuchMethodException is a checked exception in Java that occurs when a particular method cannot be found. This exception typically arises during reflection operations when the Java Reflection API is used to dynamically invoke methods. Let's explore this exception in detail with examples. Table of Contents What is NoSuchMethodException? Common Causes of NoSuchMethodException How to…
The ArrayIndexOutOfBoundsException is a common runtime exception in Java that occurs when an array has been accessed with an illegal index. The index is either negative or greater than or equal to the size of the array. This tutorial will cover the basics of this exception, its causes, and how to handle it with…
ClassCastException is a common runtime exception in Java that occurs when you try to cast an object to a subclass or class that it is not an instance of. This exception is a subclass of RuntimeException, which means it is unchecked and typically indicates a logic error in the program. When Does ClassCastException Occur?…
The IllegalArgumentException is a common exception in Java that is thrown to indicate that a method has been passed an illegal or inappropriate argument. This exception is part of the Java standard library and extends the RuntimeException, which means it is an unchecked exception. In this tutorial, we will cover: What is IllegalArgumentException? When…
The OutOfMemoryError in Java is a runtime error that occurs when the Java Virtual Machine (JVM) cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector. This error can be tricky to handle and diagnose but understanding its causes and solutions is…
A StackOverflowError is a runtime error in Java that occurs when the call stack exceeds its limit. This usually happens due to deep or infinite recursion where a method calls itself too many times without a terminating condition. What is the Call Stack? The call stack is a special area in memory that tracks…
Introduction to Assertions In Java, assertions are a tool used primarily for debugging purposes. They allow developers to test assumptions about their program and catch potential bugs early by checking conditions that should logically be true during execution. Assertions are typically used during development and testing phases and are disabled in production environments. An…
Introduction to Deadlocks in Java Deadlocks are a common problem in concurrent programming, where two or more threads are blocked forever, waiting for each other. In Java, deadlocks can occur when multiple threads compete for the same resources in a way that each holds one resource and waits for the other. This tutorial will…
Introduction to RxJava RxJava is a library for composing asynchronous and event-based programs using observable sequences. In this tutorial, you'll learn the basics of RxJava and how to use it effectively in your Java applications. Prerequisites Before we begin, make sure you have the following: Basic knowledge of Java programming. Java Development Kit (JDK)…
Java, a popular programming language, relies on three crucial components for its execution: JDK, JRE, and JVM. These components play distinct yet interrelated roles in the Java ecosystem. In this tutorial, we'll delve into each of them, understand their differences, and provide illustrative code examples to deepen your comprehension. 1. JDK (Java Development Kit)…