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Thread: Reading a text file word by word

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    Default 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


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    Default 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
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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    Default 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

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    Default 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?
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