Chapter 6, Problem 17E

Explanation of Solution

Program code:

Main.java

//import the required packages

import java.io.File;

import java.util.Arrays;

import java.util.Scanner;

//define a class inputStats

public class Main

{

//define the main

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

{

//create the object of File class

File fileName = new File("carroll.txt");

//create the object of Scanner class to refer the file

Scanner input = new Scanner(fileName);

//call the method mostCommonNames()

inputStats(input);

}

//define the method inputStats()

public static void inputStats(Scanner input)

{

//declare integer variables

int lineNum=0;

int longestLine=0;

//declare string variable

String longestString="";

//iterate a while loop to get the lines of the file

while(input.hasNextLine())

{

//increment the lineNum by 1

lineNum++;

//get the lines to the variable line

String line=input.nextLine();

//condition for checking the length of the line

if(line.length()>longestLine)

{

//length of the line is assigned to the variable

longestLine=line.length();

//set the value of longestString as line

longestString=line;

}

//create two integer variables

int token=0;

int longest=0;

//create a variable of Scanner class

Scanner console=new Scanner (line);

//iterate a while loop to get the tokens

while(console.hasNext())

{

//increment the value of token by 1

token++;

//get each words to word

String word=console.next();

//if the length of the word is greater than longest

if(word.length()>longest)

{

//set the length of the word to variable longest

longest=word.length();

}

}

//print the values

System.out.printf("Line %d has %d tokens (longest = %d)\n", lineNum, token, longest);

}

//print the longest string

System.out.println("Longest line: "+longestString);

}

}

file.txt

Beware the Jabberwock, my son,

the jaws that bite, the claws that catch,

Beware the JubJub bird and shun

the frumious bandersnatch...