File Handling in Java

[6681510]

Hi , I would like to know how to get data from textfile to hashes .

now i have a textfile which looks like this

name=>Jhon
id=>102100
address=>linnoituksentie 10

now i want fetch the data from this file in a hash but keys are going to name,id,address and values are going to be jhon,102100,linnoituksentie 10 so that mean i need to sperate the keys and values from the textfile then put the keys and values in hash , write now i can print the whole file on screen . so the code i have now is

try { FileReader file = new FileReader ("c://INSTLOG.TXT");
	BufferedReader buff = new BufferedReader (file);
	boolean eof = false;
	int a = 0;
	while (!eof) {
	String Inp = buff.readLine();
	a++;
	if (Inp == null)
	eof = true;
	else
	System.out.println(Inp);
	}
	buff.close();
	}
	catch (IOException e) {
	System.out.println ("Error ...." + e.toString());
	}
	}

 

[obadare]

Your textfile data has to be delimited with a character like space or comma.

then in your code, use the buffered reader to read each line.
,
then use a stringTokenizer in java.util.package to break up each line using the delimited, and assign which ever token you want to key and he other as value.

 String Inp = buff.readLine();
 StringTokenizer tok=new StringTokenizer(Inp,",");
 String key=(String)tok.nextToken();
 String value=(String)tok.nextToken();
 ....

 

[Diancecht]

You should move this question to the Java (Sun) forum.

Anyway, some tips:

Split a string using String.split()
Java Hashtable example

Cheers,
Dian

 

[obadare]

That was neat