Question

In java and in the simplest way possible please read through the following text file and add the first FOUR lines into an arraylist. However the next few lines should be split and then added to a course object (a new type that was already created). Then check for white space and do the same thing for each student in the txt file. Sorry for the vague question but also there is no way for me to upload the file. So please just handwrite or type out the steps. Thank you! Also please use basic techniques like scanner, while loop, .hasNextLine().

Answer 1

To read the text file and add the first four lines to an ArrayList in Java, use the Scanner class and a while loop. To split the next few lines and add them to a course object, use the split() method. To check for whitespace and do the same thing for each student, use another while loop and follow a similar approach.

Step-by-step explanation:

To read the text file and add the first four lines to an ArrayList in Java, you can use the Scanner class and a while loop. Here are the steps:Create an instance of the Scanner class to read from the file.Create an ArrayList to store the lines.Use a while loop to iterate through the lines in the file using the hasNextLine() method.Inside the loop, use the nextLine() method to read each line and add it to the ArrayList.Check if the ArrayList size is less than four. If not, break the loop.

To split the next few lines and add them to a course object, you can use the split() method. Here is an example:String line = scanner.nextLine();String[] parts = line.split(",");Course course = new Course(parts[0], parts[1], Integer.parseInt(parts[2]));To check for whitespace and do the same thing for each student, you can use another while loop and follow a similar approach as above.