EClipse IDE- Java Development
Setup Eclipse on Endeavour OS
Installing eclipse IDE via terminal
Run sudo pacman -S eclipse-java
on terminal.
source: https://wiki.archlinux.org/title/eclipse
Creating a project
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Open eclipse IDE, eclipse launcher window appears.
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Select the path where you want to create your projects. For me, the default path seems ok. Click on
Launch
. -
eclipse workspace window appears, Click on
create a java project
as shown in the picture below. -
A new window appears, enter the project name for example: Student. Uncheck the module-info.java file because here we are creating a simple java project and we don’t need any modules for that.
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Click on finish
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Now the project has been created, you can see your project directory under Package Explorer in the picture belorw.
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Lets create a java class. Click on
File
->New
-> selectClass
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Enter the class name(for example: StudentClass) and check the button to allow boilerplate code
public static void main(String90 aregs)
function. Click onFinish
. -
Java class is created successfully, now lets display a simple greeting message for our fellow java programmars by typing
System.out.println("Hello World!")
inside main fn. -
Save the file and run it.
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Here’s the output
JAVA Package management
Creating multiple classes inside Package
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Lets say you want to create more than one class that are used in a single project, these classes are desgined to perform a specfic function of a project when group of one or more than one classes are created to perform a similar function, then we group them together inside Packages.
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Packaging in software engineering is one of the core process for development of any software product.
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For example: here the student class prints Hello world and we want to create another class that prints the Student courses.
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As both of them are related to Students so we will group them together inside a single package which will be called a STUDENT.pkg.
Creating Java packages
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Right click the Student folder and go to New -> Package.
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Give it a package name(For example: STUDENT.pkg), click on FInish
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Again, right click the STUDENT.pkg package and go to New -> Class. Create a class called
StudentClass
by following the steps mentioned above. -
Similary, create another class called
Student.java
. -
Now these two classes are a part of a single package as you can see a new line is being added on top of each of these files.