In thisĬlass we won't normally pass any information to method main so just click Information you want to pass to the method, in this case main. This causes the main method of theĪnother menu pops up that asks what parameters or (You could also compile classes here.) Select the This brings up a menu that allows you to carry out IN assignment one, this is the Circle class. To run the program right click on the icon that has the main Program / class icon no longer has diagonal lines across it. Work close the editing window w and go back to the project window. After compiling the program and getting it to
If an error occurs the line the error is on is Any errors will show up in the text area at the bottom of theĮdit window. You can attempt to compile the program by clicking the Compileīutton. Save the program by clicking on the Class menu and selecting Save.
#ARRAYS BLUEJ PROGRAM TUTORIAL CODE#
Select and delete the default code in the class. This opens an editor window which is very like a simple word processor. To edit the code in a class double click on its icon. On assignment 1 the name must be Circle.Įnsure the Class radio button is selected, type in Circle for the Class Name and click the okay button. To add a new class to the project click on the New Class button.Ī menu pops up asking for the name of the class. If the class does not have any syntax errors it will now be shown without any diagonal lines on its icon. To compile a class that is part of a program you can either click the Compile button on the left side of the window or right click on the icon of the class and select the Compile option from the pop up menu. It shows up with diagonal lines because it has not been compiled yet. Now the new file / class has been added to the file. If you want to add 2 or more files from the same directory hold down the CTRL key and click on all the files you want to add, then click on the Add button. If you want to add a single file, click on it and then click on the Add button. Navigate to the directory that contains the file or files you want to add. Menu and then select Add Class from File.Ī new window pops up that allows you to navigate to the correct directory and select the file you To add the existing file to the project click on the Edit
#ARRAYS BLUEJ PROGRAM TUTORIAL DOWNLOAD#
On the first assignment you need to download and add then add the DrawingPanel.java class to your project. If you need to add any pre-existing classes to the project now is a good time to do that. You can double click on it to addĬomments about the project as a whole or write notes to yourself on things Icon that looks like a piece of paper is just a simple text file that actsĪs the projects readme file. There aren't any classes, which are the basic building blocks of programs in Java, or code associated with the project yet. It canĪfter giving the new project and name and clicking Create The name of the project does not have to be the sameĪs the name of the java file you will later add to the project. Click on the Project menu and select New Project.įrom this window type in the name of the new project in the text field File name. To create a new program you first need to create a new project. Java basic programs like fibonacci series, prime numbers, factorial numbers and palindrome numbers are frequently asked in the interviews and exams. These programs can be asked from control statements, array, string, oops etc. When BlueJ is up and running you should see a window that looks something like this: Java programs are frequently asked in the interview. The template is stored in the lib -> english -> templates -> newclass folder. You can also modifying the template that starts when creating new programs and classes.
The file called fs with a text editor.This file is located in the lib directory in You can alter some of the defaults for BlueJ my modifying
Navigating to the BlueJ directory and double clicking on the bluej.bat icon. The icon you created when you downloaded and installed BlueJ or by In this example I will assume they have been downloaded to the desktop. You don't have to put them in the BlueJįolder, just remember where you download them to on your computer. Java Introduction and Running programs in BlueJ Getting Started with BlueJĪnd installed BlueJ before completing the following steps.įrom the class web site.
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