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Other examples of IDEs are Netbeans, and Eclipse. In this chapter, we will talk about BlueJ.

                 BlueJ is an IDE designed for beginners. It has a built-in editor, debugger, and viewer. An editor
                 provides us an area to write programs, and a debugger helps us by identifying errors in the
                 programs. On the other hand, the viewer shows the output of the program.

                 BlueJ is a freely downloadable application. We can download it from https://www.bluej.org/.
                 After downloading the application, we need to install it on our computer.

                     INTERFACE OF BLUEJ

                 After installing the BlueJ IDE, double-click on the  BlueJ application shortcut icon on the

                 Desktop. The BlueJ application window appears. The BlueJ application window has the following
                 components:
                   Title Bar
                                                                                                          Menu Bar
                 New Class
                    Button

                   Compile
                     Button

                    Project
                       Icon










                                                                                                          Object Bench





                 The BlueJ application window has several important parts:
                    Title Bar:  It is located at the top of the window. It displays the application and the

                    project name.

                    Menu Bar: It contains five menus that allow us to create a new project, open an existing
                    project, create a new class, compile a program, and get help with BlueJ.
                    New Class Button: It allows us to create a new class.

                    Project Icon: It allows us to work on the current project.

                    Compile Button: It allows us to compile all the uncompiled classes.

                    Object  Bench: It is the  area  located  at  the  bottom  of the  BlueJ
                    application window that allows interaction between objects.







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