java dictionary

[tanbir_1987]

hi guys i created a java program (element) dat looks into a file for any words a user inputs and displays any output.

i would like to knwo how i could adavcne this tool so that the spellchcekr goes thoug the same file, and everytime it finds a word dat nt in da dictionary it can ask me to accept the wprd or enter a replace ment one.

this is da code i done so far:

import java.io.*;
public class spell2
{
public static void main(String[] args) throws Exception
{
BufferedReader inone =new BufferedReader(new FileReader("words.txt"));
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.print(">");
String s=in.readLine();
while (s.length()>0)
{ String t=inone.readLine();
while (t!=null)
{
if (t.startsWith(s))
System.out.println(t);
t=inone.readLine();
}
System.out.print(">");
s=in.readLine();
inone =new BufferedReader(new FileReader("words.txt"));
}
}
}


the file i used is a txt file full of words.

thank u for any help

[Phaelax]

I think your post needs a spell checker.

Run each word in the file through the dictionary list of words. Keeping the dictionary in alphabetical order, you can use a binary search to drastically increase the speed of the word search. If the word isn't found, find the closest match (compareTo) and present the option to the user

[xtsunami]

it appears that "words.txt" is essentially your dictionary and that you're checking works entered via the standard output. true, you could load the words in the file into a list, sort the list, and then search it later quickly using binary search. however, you could run into memory problems if "words.txt" is massive. and besides, you're interested in re-scanning the dictionary file. so, the following code should help; it is an adaptation of your code.

Tip: When posting, you can use the # button to insert code that is laid out well with indenting so that it is easier to read.

import java.io.*;

public class spell2
{
    public static void main(String[] args)
      throws Exception
    {
        RandomAccessFile inone = new RandomAccessFile("words.txt", "r");
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        System.out.print(">");
        boolean foundMatch;
        String s = in.readLine();
        while (s.length() > 0) {
            inone.seek(0L);  // return to the beginning of the dictionary
            foundMatch = false; // unless proven otherwise
            String t = inone.readLine();
            while (t != null) {
                if (t.equalsIgnoreCase(s)) {
                    foundMatch = true;
                    break;
                }
                t = inone.readLine();
            }
            if (foundMatch == false) {
                System.out.println("Unknown word: " + s);
                // add code to keep/replace here
            }
            System.out.print(">");
            s = in.readLine();
        }
        inone.close();
    }
}