Java how to read word by word

I need to write a program that rads the text of a text file and returns the amount of times a specific word shows up. I cant figure out how to write a program that reads the text file word by word, ive only managed to write a file that reads line by line. How would i make it so it reads word by word?

import java.io.*;
import java.util.Scanner;


public class main 
{
	public static void main (String [] args) 
	{		
		Scanner scan = new Scanner(System.in);
		System.out.println("Name of file: ");		
		String filename= scan.nextLine();
	int count =0; 

	try
	{		
		FileReader file = new FileReader(filename);			
		BufferedReader reader = new BufferedReader(file);			
		String a = "";			
		int linecount = 0;						
		String line;			
		System.out.println("What word are you looking for: ");			
		String a1 = scan.nextLine();						
	
		while((line = reader.readLine()) != null)			
		{				
			linecount++;								
			if(line.equalsIgnoreCase("that"));
					count++;			
		}								
		reader.close();		
	}
	catch(IOException e)
	{
		System.out.println("File Not found");
	}
	System.out.println("the word that appears " + count + " many times");
}
}

1. October 21st, 2011, 10:28 AM

   
   

   #1

   

   
   Junior Member
   

   

   ---

   Reading a text file word by word
   

   Hi all, new to Java programming. Got into it, cause a friend also has been doing it, but he’s been doing it for a while, so is really good. Anyways.

   So what I want to do it, read a specific .txt file, then go through that, and split it into words. If that makes sense.

   What I want the program to do, is, go through a file, and identify and count how many palindromes are inside the file. So I have been able to do the palindrome part of it. But I am just confused as to how you go about reading the text, word for word, then testing it out.

   And help will be appreciated, and not in a rush, this is just a hobby, that I am really enjoying

   ---

2. Related threads:
   

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3. October 21st, 2011, 11:00 AM

   
   

   #2

   Re: Reading a text file word by word
   

   Here is the first hit after googling «java file io»: Lesson: Basic I/O (The Java� Tutorials > Essential Classes)

   But this sounds like a job for the Scanner class. The API is your new best friend: Java Platform SE 6

   ---

4. October 21st, 2011, 12:23 PM

   
   

   #3

   

   
   Junior Member
   

   

   ---

   Re: Reading a text file word by word
   

   OK, hi again. I ended up figuring out how to do it. But I have a new problem. When I run the program, I want it to only find single word palindromes. At the moment, when I do it, it is also getting multiple word palindromes. So, in a text file I have, it has, for example «avid diva». It is coming up that each of these are palindromes. And I want it too be only one word palindromes, for example «otto». Any help again is appreciated. Here is what I currently have

   import java.io.*;
   public class PalindromDetector {
   	public static void main(String[] args) {
    
   		try { 
    
   			FileInputStream fstream = new FileInputStream("C:/Test1.txt");
    
   			DataInputStream in = new DataInputStream(fstream);
   			BufferedReader br = new BufferedReader(new InputStreamReader(in));
   			String strLine = null;
   			while ((strLine = br.readLine()) != null)   {
    
    
    
   				String reverse = new
   				StringBuffer(strLine).reverse().
   				toString();
   				int i,j,counter=0;
    
   				String m[]=strLine.split(" ");
   				String[] word=reverse.split(" ");
    
   				System.out.println("The palindrome words are:");
   				for(i=0;i<m.length;i++) {
   					for(j=word.length-1;j>=0;j--) {
   						if(m[i].equalsIgnoreCase(word[j])) {
   							System.out.println(m[i]);
   							counter++;
   							break;
   						}
    
   					}
   				}
   				System.out.println("Number of palindromes:"+counter);
   			}
   		}
   		catch(IOException e){}
    
   	}
   }

   Dunno what I have done. Obviously something silly. I’m sure what I have done is supposed to be harder that what I am supposed to have done

   ---

5. October 21st, 2011, 02:06 PM

   
   

   #4

   Re: Reading a text file word by word
   

   Instead of taking the file one line at a time, why don’t you take it one word at a time, since that’s what you really care about?

   ---

What I’m looking to do is an accountant who adds the value of every word in his ASCI code. For example: Hello (H = 45, or = 56, l = -45, a = 23. Total value = 79 ).

This is my accountant’s code:

public class Contador {

public static final char espacio = ' ';
char[] pal; //Definim l'array paraula
Paraula p = new Paraula();
public int ContarPes() {

String S; //Creamos el String para leer desde teclado

S = new LT().llegirLinia(); //Leemos todo el string

pal = S.toCharArray(); //Pasamos el String S a Array

int PesPal = 0; //Ponemos el contador a 0 , el cual dice qué pesa cada palabra
for (int i = 0; i < pal.length; i++) {
    PesPal = PesPal + pal[i];
}
return PesPal;

}





  


                       
  




!
My problem lies in knowing when you’ve already read a shovel, how you can pass me to the next. And in the end I print the sum of every word per screen.
EDIT: I can only use String for entry or exit.

In this article we will be discussing about ways and techniques to read word documents in Java using Apache POI library. The word document may contain images, tables or plain text. Apart from this a standard word file has header and footers too. Here in the following examples we will be parsing a word document by reading its different paragraph, runs, images, tables along with headers and footers. We will also take a look into identifying different styles associated with the paragraphs such as font-size, font-family, font-color etc.

Maven Dependencies

Following is the poi maven depedency required to read word documents. For latest artifacts visit here

pom.xml

	<dependencies>
		<dependency>
                     <groupId>org.apache.poi</groupId>
                     <artifactId>poi-ooxml</artifactId>
		     <version>3.16</version>
                 </dependency>
	</dependencies>

Reading Complete Text from Word Document

The class XWPFDocument has many methods defined to read and extract .docx file contents. getText() can be used to read all the texts in a .docx word document. Following is an example.

TextReader.java

public class TextReader {
	
	public static void main(String[] args) {
	 try {
		   FileInputStream fis = new FileInputStream("test.docx");
		   XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));
		   XWPFWordExtractor extractor = new XWPFWordExtractor(xdoc);
		   System.out.println(extractor.getText());
		} catch(Exception ex) {
		    ex.printStackTrace();
		}
 }

}

Reading Headers and Foooters of Word Document

Apache POI provides inbuilt methods to read headers and footers of a word document. Following is an example that reads and prints header and footer of a word document. The example .docx file is available in the source which can be downloaded at the end of thos article.

HeaderFooter.java

public class HeaderFooterReader {

	public static void main(String[] args) {
		
		try {
			FileInputStream fis = new FileInputStream("test.docx");
			XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));
			XWPFHeaderFooterPolicy policy = new XWPFHeaderFooterPolicy(xdoc);

			XWPFHeader header = policy.getDefaultHeader();
			if (header != null) {
				System.out.println(header.getText());
			}

			XWPFFooter footer = policy.getDefaultFooter();
			if (footer != null) {
				System.out.println(footer.getText());
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}

	}

}

Output

This is Header

This is footer

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Read Each Paragraph of a Word Document

Among the many methods defined in XWPFDocument class, we can use getParagraphs() to read a .docx word document paragraph wise.This method returns a list of all the paragraphs(XWPFParagraph) of a word document. Again the XWPFParagraph has many utils method defined to extract information related to any paragraph such as text alignment, style associated with the paragrpahs.

To have more control over the text reading of a word document,each paragraph is again divided into multiple runs. Run defines a region of text with a common set of properties.Following is an example to read paragraphs from a .docx word document.

ParagraphReader.java

public class ParagraphReader {

	public static void main(String[] args) {
		try {
			FileInputStream fis = new FileInputStream("test.docx");
			XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));

			List paragraphList = xdoc.getParagraphs();

			for (XWPFParagraph paragraph : paragraphList) {

				System.out.println(paragraph.getText());
				System.out.println(paragraph.getAlignment());
				System.out.print(paragraph.getRuns().size());
				System.out.println(paragraph.getStyle());

				// Returns numbering format for this paragraph, eg bullet or lowerLetter.
				System.out.println(paragraph.getNumFmt());
				System.out.println(paragraph.getAlignment());

				System.out.println(paragraph.isWordWrapped());

				System.out.println("********************************************************************");
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
}

Reading Tables from Word Document

Following is an example to read tables present in a word document. It will print all the text rows wise.

TableReader.java

public class TableReader {

	public static void main(String[] args) {
		try {
			FileInputStream fis = new FileInputStream("test.docx");
			XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));
			Iterator bodyElementIterator = xdoc.getBodyElementsIterator();
			while (bodyElementIterator.hasNext()) {
				IBodyElement element = bodyElementIterator.next();

				if ("TABLE".equalsIgnoreCase(element.getElementType().name())) {
					List tableList = element.getBody().getTables();
					for (XWPFTable table : tableList) {
						System.out.println("Total Number of Rows of Table:" + table.getNumberOfRows());
						for (int i = 0; i < table.getRows().size(); i++) {

							for (int j = 0; j < table.getRow(i).getTableCells().size(); j++) {
								System.out.println(table.getRow(i).getCell(j).getText());
							}
						}
					}
				}
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
}

Reading Styles from Word Document

Styles are associated with runs of a paragraph. There are many methods available in the XWPFRun class to identify the styles associated with the text.There are methods to identify boldness, highlighted words, capitalized words etc.

StyleReader.java

public class StyleReader {

	public static void main(String[] args) {
		try {
			FileInputStream fis = new FileInputStream("test.docx");
			XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));

			List paragraphList = xdoc.getParagraphs();

			for (XWPFParagraph paragraph : paragraphList) {

				for (XWPFRun rn : paragraph.getRuns()) {

					System.out.println(rn.isBold());
					System.out.println(rn.isHighlighted());
					System.out.println(rn.isCapitalized());
					System.out.println(rn.getFontSize());
				}

				System.out.println("********************************************************************");
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}

	}

}

Reading Image from Word Document

Following is an example to read image files from a word document.

public class ImageReader {

	public static void main(String[] args) {

		try {
			FileInputStream fis = new FileInputStream("test.docx");
			XWPFDocument xdoc = new XWPFDocument(OPCPackage.open(fis));
			List pic = xdoc.getAllPictures();
			if (!pic.isEmpty()) {
				System.out.print(pic.get(0).getPictureType());
				System.out.print(pic.get(0).getData());
			}

		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}

}

Conclusion

I hope this article served you that you were looking for. If you have anything that you want to add or share then please share it below in the comment section.

Download source