Thread: Counting Words in a File with a Loop

So the point of the program is to input a file and have the program generate the number of lines, characters, and words. As of right not I can generate the lines and the words. However, I cannot generate them both at the same time like when I need to because each method has its own loop. For this reason, which ever action I have second (in this case the loop to generate the number of lines) does not work. I was wondering how I could fix this and I'm also seeking advice on how to find the number of characters in the document.

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Scanner;
 /**
  7     This program applies line numbers to a file.
  8  */
public class LineNumberer
{
public static void main(String[] args) throws FileNotFoundException
{
// Prompt for the input and output file names
 
Scanner console = new Scanner(System.in);
System.out.print("Input file: ");
String inputFileName = console.next();
 
// Construct the Scanner and PrintWriter objects for reading and writing
//C:\Users\Ben\Documents\NetBeansProjects\Ben\src\LineNumberer\test.txt
        File inputFile = new File(inputFileName);
Scanner in = new Scanner(inputFile);
 
int wordNumber = 1;
 
while (in.hasNext())
{
String word = in.next();
 
   System.out.println(word);
   wordNumber++;
 
}
 
 
System.out.println("There are " + wordNumber + "Words");
 
 
 
int lineNumber = 1;
 
while (in.hasNextLine())
{
String line = in.nextLine();
lineNumber++;
 }
 
 
System.out.println("There are " + lineNumber + "Lines");
 
 
    }
 
}

Hey thanks for the advice. For some reason I thought I couldn't change System in, I thought it needed to be together for whatever reason. So I got it so it can count the lines and words now. However, I'm still stick on counting the characters. I know I will be using the same format. I just don;t know of any in.next functions that count the characters.

Lol, almost there.

Here is what I have for the find Characters:

 
File inputFileThree = new File(inputFileName);
Scanner three = new Scanner(inputFileThree);
 
 
int lineNumberAgain = 0;
 
 
while (three.hasNextLine())
{
 
String lineagain = three.nextLine();
int howLong = lineagain.length();
System.out.println("There are " + howLong + " Characters");
lineNumberAgain++;
int Total = howLong + Total;
 
 
 }

The only problem is that it says that Total has not been initialized. How can I initialize Total so that I can rewrite it everytime I add on howLong?

lineNumberAgain starts at the first line and for every loop it goes to the next line. The total is supposed to keep track of the total number of characters.

I know but the problem I am gaving is with int totalChars = lineChars + totalChar; (used to be int Total = howLong + Total;
) because it says that totalChars is not initiated. When I initiate totalChars = 0; above the loop I get the error that totalChars is already defined. How can I initiate totalChars so that the program runs and totalChars is updated everytime it goes through the loop and adds the lineChars?

Lol nevermind silly mistake I got it...

int lineNumberAgain = 1;
 
int totalChars=0;
while (three.hasNextLine())
{
String lineagain = three.nextLine();
int lineChars = lineagain.length();
//System.out.println("There are " + lineChars + " Characters in Line " + lineNumberAgain);
lineNumberAgain++;
totalChars = lineChars + totalChars;
 
 }

Thank you for all the help Kevin I appreciate it.

SOLVE. LOL
general form is
sum=o;// initialized
while ( condition)
{
...
sum= sum + num; // update the sum.
count++ // keeps a count.
...
}// end while loop

not sure what u trying to do, but u need something like this.

public static void main(String[] args) throws FileNotFoundException{
Scanner inFile = new Scanner(new FileReader("File")); // reads from a file.
PrintWriter outFile = new PrintWriter("File"); // Write on a file.
}

Lol I'm trying to seperate the program into classes now.
The program works, it takes a file and counts the number of lines, words, and characters:

 
 
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import javax.swing.JFileChooser;
 /**
  7     This program applies line numbers to a file.
  8  */
public class LineNumberer
{
public static void main(String[] args) throws FileNotFoundException
{
// Prompt for the input and output file names
 
JFileChooser chooser = new JFileChooser();
Scanner in = null;
if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION)
{
    File inputFile = chooser.getSelectedFile();
    in = new Scanner(inputFile);
}
 
 
 
 
// Construct the Scanner and PrintWriter objects for reading and writing
//C:\Users\Ben\Documents\NetBeansProjects\Ben\src\LineNumberer\test.txt
 
 
File inputFileOne = chooser.getSelectedFile();
 
 
getWords words = new getWords();
getWords.getWords(inputFileOne);
 
 
 
 
Scanner one = new Scanner(inputFileOne);
 
 
 
int wordNumber = 0;
 
 
while (one.hasNext())
{
String word = one.next();
 
 
   wordNumber++;
 
}
 
 
System.out.println("There are " + wordNumber + " Words");
 
 
 
 
 
 
 
File inputFileTwo = chooser.getSelectedFile();
Scanner two = new Scanner(inputFileTwo);
 
 
int lineNumber = 0;
 
while (two.hasNextLine())
{
String line = two.nextLine();
lineNumber++;
 }
 
System.out.println("There are " + lineNumber + " Lines");
 
 
 
 
 
 
File inputFileThree = chooser.getSelectedFile();
Scanner three = new Scanner(inputFileThree);
 
 
int lineNumberAgain = 1;
 
int totalChars=0;
while (three.hasNextLine())
{
String lineagain = three.nextLine();
int lineChars = lineagain.length();
//System.out.println("There are " + lineChars + " Characters in Line " + lineNumberAgain);
lineNumberAgain++;
totalChars = lineChars + totalChars;
 
 }
 
System.out.println("There are " + totalChars + " Total Characters");
 
//C:\Temp\Test.txt
 
 
 
 
    }
 
}

Now I'm trying to get the program to work in an object oriented manor. So I am breaking up the methods and putting them in separate classes (getWords, getLines, getCharacters)

I am stuck on the first method because I am trying to use the object use another object as a parameter:

 
File inputFileOne = chooser.getSelectedFile();
 
 
getWords words = new getWords();
getWords.getWords(inputFileOne);

And it is not working as I stated above