Find words within a text file

Hey all.
I am playing around with the idea of finding a line of text within a text file, by using scanner and some next methods.
The way I am trying to get it to work is that one enters a string and the program then finds all the lines of text containing that
user-entered string and then prints them.
The text file in question contains names of University papers and their room numbers, quantity of students etc.
Example:
IBUS212     EALT006     1am     72     AL     LI
BMSC241     MCLT102     2     pm     8     AL     COOREY
My problem annoyingly enough seems to be that I can't think how one could compare the string entered to the lines of text being
scanned in the text file.
My latest go involved what you see in the code, scanning the examdata.txt file for a user-entered course number, using course.next();
by going with the example above it would be IBUS212. The task was to then to find all of the lines containing that number and print them out using
println (what I have tried with id and line) as well as the rest of that line eg: EALT006     1am     72     AL     LI .
   public void printCourse()
    try
        String details, input, id, line;
        int count;
        Scanner user = new Scanner(System.in);
        System.out.println();
        System.out.println();
        System.out.println("Please enter your course ID: ");
        input = user.nextLine();
        Scanner course = new Scanner(new File("examdata.txt"));
        course.next();
        course.nextLine();
        id = course.next();
        line = course.nextLine();
        if(input.equals(id))
            System.out.println("Your course times are: " + id + "and" + line);
        else
          System.out.println("Your course does not exist.");
        catch(IOException e)
            System.out.print("File failure");
}Any advice/help/troubleshooting would be greatly appreciated.
Edited by: AUAN on Aug 13, 2009 9:43 AM
Edited by: AUAN on Aug 13, 2009 9:44 AM
Edited by: AUAN on Aug 13, 2009 9:49 AM

You'll want [to loop while|http://java.sun.com/docs/books/tutorial/java/nutsandbolts/while.html] the course Scanner has a next line and then print the line if it contains the entered text.
For useful methods you can check the Javadoc of String and Scanner (use your browser search on keywords like 'next' or 'contains' to find them).

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Finding words in a txt file!

Hi guys,
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Your first post is very close to what you want:
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I would like to reorder the file in such a way that
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if the second word in the first line is " Part 2" then the third line should be
p2_f1     p2_f2     p2_f3     p2_f4     p2_f5     p2_f6
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Hello ,
I have changed the code to initialize the hashmap.
My code is
import java.io.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Reorder {
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//Variable Declarations
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            Map<String, String> entries = new HashMap<String, String>();
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            while ((strLine = br.readLine()) != null) {
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// Sort The data
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String firstLine = readFirstLine();
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}my output now looks like this
{Pa=Part 1        Part 2, Part 1=p1_f1        p1_f2        p1_f3        p1_f4        p1_f5        p1_f6, Part 2=p2_f1        p2_f2        p2_f3        p2_f4        p2_f5        p2_f6}
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Edited by: Spry.chipper on Dec 13, 2009 10:53 AM

Find words within a text file

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