Java Multiple Catch Block
One or more catch blocks may come after a try block. Every catch block must have its exception handler. So, if you need to perform multiple tasks in response to different exceptions, use the...
Category: Java Tutorials
Can we start a Thread twice in Java
“Starting a thread twice” in the context of Java multithreading refers to the attempt to initiate the execution of a single thread more than once using the start() method. Java threads have a lifecycle...
Java Project – PDF Converter
In this project, we aim to develop a PDF Converter using Java. It will help us convert .docx files to PDFs. We can attach a docx file from our system, and it will convert...
Hierarchical Data Structures in Java
In Java, a hierarchical data structure organises data in a tree-like structure. Each node has one parent node and zero or more child nodes. The parent node is the node higher up in the...
Java Project – Sudoku Game
In this project, we will create a FirstCode Sudoku Game in Java using Swing and the Abstract Window Toolkit. About Java Sudoku Game Sudoku is a popular logical puzzle game in which a grid...
Java final, finally and finalize
Final, Finally, finalise is a separate concept in Java, each with a unique function within the language. Final is a keyword in Java. When applied, it turns a variable into a constant, meaning its...
Exception Handling with Method Overriding in Java
An exception occurs when an unexpected event occurs during the execution of a program at runtime and disrupts the normal flow of programming instructions. Exceptions are used to handle errors at runtime, helping to...
Java Thread Scheduler
A Java component called a thread scheduler decides what threads to run or execute and where to wait. The thread scheduler in Java will select only threads that are in a runnable state. However,...
ConcurrentModificationException in Java
When working with Java collections, you may come across a ConcurrentModificationException. This exception occurs when you try to modify a collection while iterating over it, leading to unexpected behaviour or errors. A ConcurrentModificationException is...
Joining Threads in Java
The join() method of the Thread class enables one thread to wait until another thread has finished running. If t is a Thread object that is presently running, t.join() will ensure that t is...