Hello World Java Lab

In this lab, you will learn how to create a Java project, package, and class in IntelliJ as well as how to run your code.

Step 1: Create new Java project

1. To create a new project, you have two options. Both options will lead to the same place in (#2).

   If you are already inside of IntelliJ, select File-> New -> Project

   OR

   If you are at the IntelliJ start screen, select New Project

2. In the window that appears, make sure maven is highlighted and then select next.

   

3. The window that appears next prompt you for your Project name and location. Navigate to the folder that was created when you cloned the lab repo from GitHub. Make sure the name of the project matched the folder. Your location and folder name may differe from mine. When you are done, select finish.

   

Step 2: Create a new package

1. Navigate to the src/main/java folder in the project tab.

2. Right click on the java folder and create a new package named codediff.stayready.labs.

   

Step 3: Create a class called HelloWorld

1. Within the AcmeOrderSystem project, right click on the labs folder (it will appear as codediff.stayready.labs in IntelliJ). Then select New -> Java Class

   

2. In the dialog window that displays, enter HelloWorld as the name of the class, and press Enter. This will create a file HelloWorld.java in the labs folder of the project.

   

3. Open the file, if it did not already, add the following code, and save.

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

Step 4: Running your Code

1. Click the green arrow next to public static void main. When you do so, this will tell IntelliJ to Run your code.

   

2. View the results of the code in the terminal window. You should see the text Hello, World.

   

3. Modify the message to display the following info about yourself. An example of what we are looking for can be seen below can be seen below.

   • Name
   • Hometown
   • Major
   • Favorite Song
   • Favorite Superhero
   • Favorite Caffeine Source
   

Step 5: Submission

Commit and push all your changes to your repository