Introduction to Eclipse Programming with an Integrated Development Environment

What’s an Integrated Development Environment? We need a tool to… –Help us write the code –Help us test the code –Help us debug the code –Help us fix the code –Help us deploy the code A tool that does all these things in a single application is an Integrated development Environment (IDE) We’re going to use Eclipse

Layout of a Java Program WorkspaceProjectSource Folder Source Files

Starting Eclipse Select Eclipse from Start Menu Select a folder for your Workspace (to be defined next) – this option may not appear. If not, just use the default –My Documents is safe on class computers

Starting Eclipse

Eclipse Workspace/Project Create a new C Project –This will create a Workspace the first time through

Eclipse Workspace/Project Give it a Project name Select “Empty Project” under Executable Press “Finish” –This creates a Workspace (1 st time) –Also creates a Project within the Workspace –Subsequent new projects will be added to the existing workspace

Workspace/Project You may have to close the welcome screen to see this view Just press the X on the “Welcome” tab

Source Folder Create a new Source Folder

Source Folder Give it a name

Source File Create a Source File

Source File Give it a name

Workspace/Project Note that a Workspace can contain 1 or more Projects –You might want to create a project for each class you have –You might want to create a project for each assignment within a class –It’s all up to you The message here is ORGANIZATION!!! It is critical if you want to be a successful computer scientist!!!

Workspace/Project/Folder/File

Adding Code Type in the code from page 7 of Kernighan and Ritchie Save the file (File->Save or ^s)

Build the Project Build the project –This will run the C compiler and the linker –You will be told of warnings and errors in your program –You must fix errors –You should fix warnings

Running the Program Run->Run As…

Running the Program Note the results in the console window

Congratulations You’ve just created a working C program! Note that the Eclipse Integrated Development Environment (IDE) is persistent therefore your screens may vary from what you just saw What does Integrated Development Environment mean? What does persistent mean?

Transporting a Project (Export out of Eclipse) File -> Export…

Transporting a Project (Export out of Eclipse) Select General ->File system Click Next

Transporting a Project (Export out of Eclipse) Select src (should be selected) Browse to a location Select Finish This will place the source files (src files) in the selected folder

Transporting a Project (Import into Eclipse) Create a project like we did previously but do not create the source file File -> Import… Make sure the “src” folder is selected

Transporting a Project (Import into Eclipse) Highlight General -> File System Click Next

Transporting a Project (Import into Eclipse) Browse to the folder you created when you exported the project Check the c file you exported Browse to your project src folder (if it’s not already shown) Click Finish

Transporting a Project If something goes wrong during the Import step, don’t panic, you still have the.cfile(s) in the folder you created during the Export step You can go back and try it again

The program #include main() { printf("hello, world!\n"); } Get access to external codeProgram starting function String constant Formatted output function Statement terminatorStatement block

Let’s experiment…