Chapter 6, Problem 5E

Explanation of Solution

Program code:

Main.java

//import the required header files

import java.io.*;

import java.util.*;

//define a class file_read_tot_sum

class Main

{

//define a method collapseSpaces()

public static void collapseSpaces(Scanner in)

{

//declare requied variables

String line, outline;

//declare the variable of Scanner class

Scanner line_in;

//iterate a while loop

while(in.hasNextLine())

{

            //get the tokens

    line = in.nextLine();

    //new object

    line_in = new Scanner(line);

    //set the value for outline

    outline = "";

    //iterate a while loop

    while (line_in.hasNext())

    {

//create a new string with minimum spaces

        outline += line_in.next();

        //concatenate the spaces

        outline += " ";

    }

    //print the string

    System.out.println(outline);

}

}

//define the main() method

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

{

    //create an object of Scanner

    Scanner in=new Scanner (new File("Example...