JAVA HELP!!!!!!!

FileDisplay Class Write a class named FileDisplay with the following methods:

Constructor: The classs constructor should take the name of a file as an argument.

displayHead: This method should display only the first five lines of the files contents. If the file contains less than five lines, it should display the files entire contents.

displayContents: This method should display the entire contents of the file, the name of which was passed to the constructor.

displayWithLineNumbers: This method should display the contents of the file, the name of which was passed to the constructor. Each line should be preceded with a line number followed by a colon. The line numbering should start at

1. Next, create another Java class named FileDisplayRun which:

Create an endless loop that accepts a number and validate value is from 1 to 4.

If (opt == 4) System.exit(0);

Request a file name.

Use code like this to verify that the file exists before instantiating the FileDisplay object:

fileNameIn = keyboard.nextLine();

//make sure the file exists

file = new File(fileNameIn);

if (file.exists())

{

//create instance of the FileDisplay class

fd = new FileDisplay(fileNameIn);

while(true) {

System.out.println(,,, // prompt user with a little menu opt = keyboard.nextInt();

switch (opt)

{

case 1: fd.displayHead(); break;

case 2: fd,displayComtents(); break;

case 3: fd.displayWithLineNumbers();break;

case 4: System.exit(0);

}

}

} else {

System.out.println("The file " + fileNameIn + " does not exist.");

}

Hint: The text file should be placed in the folder containing the Chapter5 folder.

Grading criteria follow: Only Java features introduced through the current textbook chapter should be utilized to complete the exercise. No Try-Catch blocks will be allowed. The throws IOException should be used on method header, where needed. Variables and method names should be named using camel-case. Variables should be nouns (names) and methods names should begin with a verb (action) word. Class names should always begin with a capital letter and only one class per source file. Your FileDisplay.java should be written per the given Class diagram. Your FileDisplayRun.java should be written as described above.