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file io

file io, to detect end of text file

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shilpi.mittal7

5 Nov, 2008 - 06:05 AM

Post #1

New D.I.C Head

Joined: 5 Nov, 2008
Posts: 2

java

import java.io.*;
import java.util.StringTokenizer;
public class file3
{
	public static void main(String st[]) throws FileNotFoundException,IOException
	{
		int no;
		String s,aRecord="";
		StringTokenizer tokenizer;
		
		File infile=new File("C:\\Program Files\\Java\\jdk1.5.0\\bin\\mean1.txt");
		if(infile.exists())
		{
			 FileReader aFileReader=new FileReader(infile);
			BufferedReader aBufferedReader=new BufferedReader(aFileReader);
			 aRecord=aBufferedReader.readLine();
			 tokenizer=new StringTokenizer(aRecord);
			 	System.out.println(aFileReader.read());
			while(aFileReader.read()!="END")
			{
				s=tokenizer.nextToken();
				no=Integer.parseInt(s);
				System.out.println(no);
			}
		}
		else
		{
			System.out.println(infile+"doesnt exist");
			System.exit(0);
		}
		
	}
}

in this code,i am not able to detect end of file....my file(mean1) contains integer values and i have to print all values upto end of file...
please help me in this as i am beginner to java
thank you

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gabehabe	RE: File Io 5 Nov, 2008 - 07:39 AM Post #2
Sexy DIC Joined: 6 Feb, 2008 Posts: 8,864 Thanked: 177 times Dream Kudos: 3275 Expert In: Lots of things. My Contributions	Moved to Java. Also, please
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pbl	RE: File Io 5 Nov, 2008 - 04:06 PM Post #3
Java Lover Joined: 6 Mar, 2008 Posts: 9,966 Thanked: 1188 times Dream Kudos: 450 My Contributions	Don;t know a FileReader read method that looks like this: CODE while(aFileReader.read()!="END") an even if there is a FileReader method named read() that returns a String the test should be done that way: CODE while(!aFileReader.read().equals("END")) you cannot use == or != on Strings
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