Paul Leahy Computer Science Expert Education M.A., Advanced Information Systems, University of Glasgow Expertise B.Sc., Computer Science, Leeds University Introduction Has over a decade of experience working in the IT industryHas worked as an in-house and vendor-based computer program developerIs a Microsoft Certified Application Developer for C# Experience Paul Leahy is a former writer for ThoughtCo, who wrote more than 100 articles over the span of five years. Paul has more than 10 years of experience in the IT industry, working as both an in-house and vendor-based developer. His computer programming career spans the early days of computer languages with little or no structure to the transition to object-oriented programming and the explosion of web applications and services. He currently divides his time between IT contracting and writing. Education Paul Leahy has a bachelor's degree in computer science from Leeds University in England and a master's degree in advanced information systems from the University of Glasgow in Scotland. He is also a Microsoft Certified Application Developer for C#. ThoughtCo and Dotdash Meredith ThoughtCo, a Dotdash Meredith brand, is an award-winning reference site offering education content created by experts. ThoughtCo reaches 13 million readers each month. Learn more about us and our editorial guidelines. Read more from Paul Leahy How to Prevent Inheritance in Java Using the Keyword Final Java Event Listeners and How They Work How to Use a Constant in Java Using Java Naming Conventions Reached End of File While Parsing DefaultTableModel Overview Message Dialog Box Java Program ListView and ComboBox Example Code How to Switch Between Two JavaFX Stylesheets How to Build a Simple GUI Application (With Example JavaFX Code) GridPane Example Program Source Code Example Java Code For Building a Simple GUI Application DefaultTableModel Example Program (Java) BorderPane Example Program A Simple Java Table Program (With Example Code) Java: A Progress Bar Example Program A KeyListener Example Program With Java Code CardLayout Example Program Building Your First Java Applet Using the Switch Statement for Multiple Choices in Java Conditional Operators How to Implement Association in Java Implicit Parameters in Java Designing and Creating Objects in JavaScript