Thread: Reading the content of a file into 2 different structures

hello guys!
I'm trying to split the text of a file into 2 fields and store part of it in a string array and the other part in a map.

public static void main(String[] args) {
		// TODO Auto-generated method stub
		try{
		FileInputStream fstream = new FileInputStream("QT.txt");
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine;
 
        while ((strLine = br.readLine()) != null) {
            String[] splitOut = strLine.split("  ");
            for (String token : splitOut)
                System.out.println((token));
        }
        in.close();
    }catch (Exception e){
    //Catch exception if any
  System.err.println("Error: " + e.getMessage());
}
 
	}

Any suggestions of how I can do that?

What have you tried to do? Show the code and explain, why doesn't it work.

Hey! Thanx for ur attention!
Actually, as I explained before, I'm trying to split the content of a .text to an ID and VALUE. Then store the VALUE in a string array, while the ID and Value should also be stored in a map. So far, I managed to split the content of .text, and populate the map with both values and ID. Also I could store each VALUE string in an individual array. The only thing that is not working for me is that I want all the VALUE strings to be stored in a single array instead of different arrays. Here is my code:

public static void main(String[] args) {
		// TODO Auto-generated method stub
		 String []STRINGS;
		Map<String, String> ID_MAP = new HashMap<>();
		try{
		FileInputStream fstream = new FileInputStream("QT.txt");
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String strLine;
 
        while ((strLine = br.readLine()) != null) {
            String[] splitOut = strLine.split(":");
            String str = splitOut[1];
            final String[] STRING = str.split("//");
             ID_MAP.put(splitOut[0], splitOut[1]);

I'm not sure whether I've understood you correctly, but if you confused by the fact that each iteration of while loop creates it's own array, then you can just read all the file to a single string and only then operate on that single string. Or you can use a single List<String> to accumulate values from different iterations, and then use Collections.toArray() (if I'm not mistaken).

Thanx so much!!
I tried what u just recommended. I split the text in the .text into 2 parts, assigned the different parts to different array lists. Now for the part that I needed to use as a String array, I converted the array list to a string array. But now the issue is that my string array needed to be final in order to be used by the method i'm using to get my final output. Any idea about how to add values from the array list to the final string array?

If you need just to create a new array from a list, then you can use List.toArray(). If you need to merge an existing array with the list's contents, you can create a new list and dump everything from an array and other list into it and then convert it to array. Or you can convert the list into array, create big enough array to contain all the desired data, and with the help of System.arraycopy() populate it with your two arrays' data.

Thanx so much!! It perfectly worked :-)

You're welcome.