Question

Linux Question: you will practice on creating and editing a text file by VI.

How to:

1. Install JDK 1.8 by the following command:

$ sudo yum    –y    install    java-1.8.0-openjdk-devel.x86_64

2. Use VI to create a file “YourFirstNameHomework.java” (e.g., “MollyHomework.java”) and add the following contents into it. (grading details: file name format:10 pts, a screenshot of the file content in the VI environment: 10pts, paragraphs: 10pts, empty lines and indentations: 10, text: 10pts)

Here's the code

import java.util.Scanner; // Import the Scanner class class MollyHomework { public static void main(String[] args) {     Scanner myObj = new Scanner(System.in); // Create a Scanner object     System.out.println("Enter your first name");     String fName = myObj.nextLine(); // Read user input of the first name     System.out.println("Enter your last name");     String lName = myObj.nextLine(); // Read user input of the last name     System.out.println("Hello " + fName + “ “ + lName); // Output user input   } }

3.To compile the above java code, run the following command (you need to use your java file name):

$ javac MollyHomework.java

4. To execute the java program, run the following command

$ java MollyHomework

Question:

Describe how you created above file and its contents in VI.

1. Bash/VI commands: 20pts;
2. Non-brute-force solution: 10pts).

Note: Brute-force solution means that entering characters one by one.

*Show how the code looks or how you got it to work in your linux machine

Answer 1

Type the above program in notepad or just copy it and then paste it in VI editor with the following method.

the first type I for insert text.

Move the cursor to the end of what you want to cut. Press d to cut (or y to copy). Move to where you would like to paste. Press P to paste before the cursor, or p to paste after.

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