CODE IN JAVA Write a class name FileDisplay with the following methods: Constructor:  takes the name of a file as an argument displayHead:  displays only the first five lines of the file’s contents.  If the file contains less than 5 lines, it should display the file’s entire contents. displayContents:  displays the entire contents of the file, the name of which was passed to the constructor. writeNew:  displays the contents of a 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.  As each line is displayed it should also be written to a new file, the name of which is passed in as a parameter. I have provided a test file called “testfile.txt”.   I have also provided a driver for the application called “filedisplaytest.java”.  This file is complete and should not be altered. FILEDISPLAYTEST.JAVA (do not change this) import java.io.*; public class FileDisplayTest { publicstaticvoidmain(String[] args) throwsIOException { // Create an instance of the FileDisplay object. FileDisplayfd = newFileDisplay("TestFile.txt");   // Test the displayHead method. System.out.println("File Head:"); fd.displayHead();   // Test the displayContents method. System.out.println("\nFile Contents:"); fd.displayContents();   // Test the displayWithLineNumbers method. System.out.println("\nFile Contents with Line Numbers:"); //fd.displayWithLineNumbers(); fd.writeNew("TestFileNew.txt");   } }   TESTFILE.TXT   This is line one. This is line two. This is line three. This is line four. This is line five. This is line six. This is line seven.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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CODE IN JAVA

Write a class name FileDisplay with the following methods:

Constructor:  takes the name of a file as an argument


displayHead:  displays only the first five lines of the file’s contents.  If the file contains less than 5 lines, it should display the file’s entire contents.


displayContents:  displays the entire contents of the file, the name of which was passed to the constructor.
writeNew:  displays the contents of a 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.  As each line is displayed it should also be written to a new file, the name of which is passed in as a parameter.


I have provided a test file called “testfile.txt”.  

I have also provided a driver for the application called “filedisplaytest.java”.  This file is complete and should not be altered.

FILEDISPLAYTEST.JAVA (do not change this)

import java.io.*;


public class FileDisplayTest
{
publicstaticvoidmain(String[] args) throwsIOException
{
// Create an instance of the FileDisplay object.
FileDisplayfd = newFileDisplay("TestFile.txt");
 
// Test the displayHead method.
System.out.println("File Head:");
fd.displayHead();
 
// Test the displayContents method.
System.out.println("\nFile Contents:");
fd.displayContents();
 
// Test the displayWithLineNumbers method.
System.out.println("\nFile Contents with Line Numbers:");
//fd.displayWithLineNumbers();
fd.writeNew("TestFileNew.txt");
 
}
}
 
TESTFILE.TXT
 
This is line one.
This is line two.
This is line three.
This is line four.
This is line five.
This is line six.
This is line seven.
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