Question

Submit Chapter6.java with a public static method named justifyText that accepts two parameters; a Scanner representing a file as the first parameter, and an int width specifying the output text width. Your method writes the text file contents to the console in full justification form (I'm sure you've seen this in Microsoft Word full.docx ).  For example, if a Scanner is reading an input file containing the following text:

Four score and
seven years ago our
fathers brought forth
on this continent
a new
nation.

Then a call to justifyText(input,30); will output the following to the console:

Four score and seven years ago
our fathers brought forth on
this continent a new nation.

Hint: Start by removing all the extra space from the text (a similar Exercise in text). Then calculate the number of spaces you need to add back in, to achieve the desired width, then System.out the text one line at a time. You may assume that we need to add only one or two spaces between words, and do not hyphenate words as other fancy programs might do. Keep it simple (well it's not that simple). And be certain that what you submit passes the Java compiler and does produce some output!!! A few points is infinitely better than a zero.....

To run above example, I had the following file in my Eclipse project to read these data from the text: spaces.txt

Here's my test code:

/*

public class Chapter6 {
   public static void main(String[] args) throws FileNotFoundException {
       File spaces = new File("spaces.txt");
       Scanner input = new Scanner(spaces);
       justifyText(input ,30);          
   }
   // Additional methods added below:
}

Answer 1

Answer: Java code import java.io.File; import java.util.Scanner; //class named CHAPTER6 public class chapteré //method main public static void main (String[l args) //try block try //opening the file spaces.txt File spaces- new File ("spaces.txt"); Scanner input = new Scanner (spaces); //passing value to the justifyText method justifyText (input, 30); //catch block catch (Exception e) //method for defining text justification public static void justifyText (Scanner inputval, int widthVal) //try block try //catch block string totalstringval = ""; while (inputval.hasNextLine ()) //total string getting totalstringval += inputval.nextLine(); //trim function is used for replacing all

Result: Command Prompt D:NProgran Filesava idk1.8.848Nbin>javac chapter6.java DaNProgran Files Java jdk1.8.0 40bin>java chapter6 Four score andseven years ago ourfathers rought forthon this continent a nevw nation DNProgran Files Java idk1.8.0 40 bin>

Code:

import java.io.File;

import java.util.Scanner;

//class named CHAPTER6

public class chapter6

{

//method main

public static void main(String[] args)

{

     //try block

try

     {    

          //opening the file spaces.txt

          File spaces= new File("spaces.txt");

          Scanner input = new Scanner(spaces);

          //passing value to the justifyText method

          justifyText(input, 30);

       }

        //catch block

        catch (Exception e)

       {     

       }

   }

//method for defining text justification

   public static void justifyText(Scanner inputval, int

     widthVal)

    {

       //try block

       try

          {

               //catch block

              String totalStringVal = "";

              while (inputval.hasNextLine())

            {

                    //total string getting

                   totalStringVal += inputval.nextLine();

              }

          //trim function is used for replacing all

         totalStringVal = totalStringVal.replaceAll("\\s+", "

          ").trim();

                   printStringValue(totalStringVal, 30);                         inputval.close();

       } catch (Exception e)

       {

           e.printStackTrace();

       }

   }

   //method to print the string in the sequence

   public static void printStringValue(String inStrCal, int

   widthof)

   {

       //initialising minimum

       int minimum = 0;

       while (true)

       {

           //checking the string length

           if (inStrCal.length() <= widthof)

           {

               widthof = inStrCal.length();

           }

           //string temporarly manipulating the width

         String tempString = inStrCal.substring(minimum

          widthof);

           int lastIndexVal = tempString.lastIndexOf(" ");

           //checking the final index

           if (lastIndexVal == 0)

           {

               System.out.println(inStrCal.trim());

               break;

           }

           //checking the string line

           String stringLine = inStrCal.substring(minimum

          lastIndexVal);

           inStrCal = inStrCal.substring(lastIndexVal

          inStrCal.length());

           System.out.println(stringLine.trim());

       }

   }

}