I suggest using the $HOME/.local/bin directory, if it exists, because that's generally in your path. Once it launches, point it to the directory you want to use for installing. If you're using the generic installer, launch it with Java from a terminal: $ java -jar. On Windows, look in C:Program Files (x86)BlueJ or C:Program. It also offers a "generic" installer, delivered as a JAR file (the usual Java format). Opening a Project Find the folder where BlueJ is installed and open the examples folder inside. BlueJ also requires JavaFX (as a separate download), so follow the instructions on the BlueJ site. After you've installed Java and JavaFX, launch the BlueJ installer.īlueJ has downloadable installers for Ubuntu Linux, Windows, and macOS. However, to use BlueJ, you must have the same version of Java used by BlueJ, so check the version you have against what BlueJ requires. You need Java to program in the language anyway, so you may already have Java installed. Installing BlueJīlueJ is written in Java, so to run it, you must install Java. It's meant to help you learn the language, not to type faster or more efficiently. It's very much a learning tool, and it's purposefully less helpful than a full IDE like Eclipse or NetBeans. The main purpose of this project to help the tourists and other visitors to the city by providing information about hotels, transportation facilities, air ticket booking, shopping details, city news, etc. You don't have to rely on indentation to see that a Java method falls within a specific class because you can see the blocks of code.īlueJ isn't an all-purpose IDE. Smart City is a web-based software developed in Java programming language to store the details of a city. By using colored backgrounds, BlueJ helps you visualize the structure of the code you're writing. It can be nearly impossible to tell a variable apart from a keyword that's a part of the language, and even with the assistance of indentation and braces and semicolons, it all starts to blur together.īlueJ is designed to clear away this confusion. It doesn't help that when you're learning to program, most of the code you type looks and feels basically the same: it's all vaguely meaningful, yet oddly similar, with words that seem to make as much sense whether you read them backward or forward. Enter the name of the project (say 'HelloWorld') in File name and click on Create. This may require you to go up/down the directory tree a few times. In Look In box, find and select the CSC211 folder that you created in Step 1. If you're new to programming-or just new to Java, it can be difficult to understand advanced concepts like variable scoping and loops and conditionals. Bluej Example Projects In BlueJ's top menu bar, select Project and New. BlueJ was developed for teaching and learning Java. It uses a subdued color scheme to keep different code elements separate from one another, so it's easy to tell a class from a method or a comment. An integrated, interactive Java development environment, featuring class structure diagrams, interactive invocation and an easy-to-use interface. When you create a new class, BlueJ generates a clean but robust template with hints toward what you need to do.
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