Chapter 6, Problem 6E

Explanation of Solution

Program code:

Main.java

//import the required packages

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

//define a class Main

public class Main

{

//define a method readEntireFile

public static String readEntireFile(Scanner sc)

{

//create a string variable

String result = "";

//iterate a while loop to get the lines

while (sc.hasNextLine())

{

//getting lines of the file

String line = sc.nextLine();

//concatenating the lines

result += line;

}

//return the result

return result;

    }

    //define the main() method

public static void main(String[] args) throws FileNotFoundException

{

//create the Scanner object

Scanner in = new Scanner(System.in);

//prompt the user to enter the name of the file

System.out.println("Enter file name:");

//create object of the File class and scan for the file name

File file = new File(in.nextLine());

//referring the file using Scanner object

in = new Scanner(file);

//call the method readEntireFile

String content = readEntireFile(in);

//print the contents of the file

System.out.println("Contents of the file are:\n" + content); 

}

}

Example...