1. Install Eclipse IDE

• Click on the button and download the correct setup according to your system. Once you download the setup install it properly.

2. Setup eclipse workspace

• Create a directory separately and set it as eclipse workspace
  • Simply go to File -> Switch Workspace -> other -> Browse {Desired Directory, let’s say “Eclipse_Workspace”}
  • Now all the project you will be making, will be stored in this workspace or directory
  • You can change this directory any time {using Switch Workspace}

3. Create a java project in Eclipse and execute it

• First go to File-> New-> Java Project
  • Choose the name of the project let’s say “FirstJavaProject”
• Now let’s create a package in source folder (src)
  • Right click on src-> New -> Package
  • Choose the name of the package let’s say “Module_1” {not Module-1 nor Module 1}.
• Now let’s create a Java program
  • Right Click on Module_1 -> New -> Class
  • Choose the name of the file let’s say “SampleProgram” {don’t add .java extension there}
  • Tick main method there and click on finish

public class SampleProgram{

     public static void main(String args[]){
         System.out.println("Hello World");
     }
}

• Right click anywhere on the program and choose Run As “Java Application”
• You must be able to see output in the console like this

4. Install JDK, but why?

• To run or execute a java program through the system’s terminal, the JDK must be installed first.
• However, if you want to run Java code in Eclipse, there’s no need to install the JDK separately because Eclipse includes its own compiler.
• Download JDK from here and install the setup properly.

5. Run a java project through your system’s terminal

• First go to the eclipse workspace folder you have created earlier {Eclipse_Workspace}
• Now locate the java program inside src folder
• copy the path of this java file by checking the properties of the file
• Now open your system terminal and paste the copied path with cd command
• Make sure not to paste the given path

>cd "/Users/akashchauhan/Eclipse_Workspace/FirstJavaProject/src/Module_1"

• Now compile and run the java program {SampleProgram.java}

> javac SampleProgram.java
> java SampleProgram

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Thanks and Regards,