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Marlene Galea The JDK (Java Development Kit) An IDE (Integrated Development Environment) ◦ Different IDEs include: JCreator NetBeans BlueJ We will be using BlueJ Marlene Galea Java Development Kit (JDK) Compiler Debugger Other tools Java Runtime Environment (JRE) Java platform core classes Java Virtual Machine (JVM) Supporting Java platform libraries Integrated Development Environment (IDE) Marlene Galea – HoD Computing Marlene Galea Java Development Kit (JDK) A JDK includes the JRE, compiler, debugger and other tools for developing applets and applications. Compiler Debugger Other tools Java Runtime Environment (JRE) The JRE is what you get when you download Java software. The JRE is the runtime portion of Java software. Java platform core classes Supporting Java platform libraries Java Virtual Machine (JVM) The JVM is software that converts the Java intermediate language (bytecode) into machine language and executes it. Integrated Development Environment (IDE) An IDE e.g. NetBeans is used to edit, compile and debug Java code. Marlene Galea – HoD Computing Marlene Galea Go to http://www.bluej.org/ and download BlueJ You may use the JDK and BlueJ combined installer (or you may download the JDKseparately – see here) Marlene Galea Creating and running your application Select ‘New Project’ from the ‘Project’ Menu Marlene Galea Choose where to save your new folder. Hit the ‘Create’ button. Marlene Galea Select ‘New Class’ Name your class and press ‘OK’ Marlene Galea Double-click your class to write your code Marlene Galea Once you’ve written some code, hit ‘Compile’. Marlene Galea Right-click on the class holding the method ‘main’. Select and click method ‘main’ to run. Marlene Galea Select ‘Create JAR File’ from the Project Menu. Marlene Galea If you want to ONLY download the JDK, follow the following steps. Click this link to go to the Oracle page from where you can download the JDK Select ‘Download Java’ as shown: Marlene Galea Accept Licence Agreement Select the product for your system Marlene Galea Marlene Galea