How to Correctly Read Text Files in Android and Troubleshoot Common Exceptions?

Read Text Files in Android: Troubleshooting an Exception When Reading from mani.txt

You're encountering an exception when attempting to read a text file named "mani.txt" in your Android application. This error occurs because the code is searching for the file in an incorrect location.

To successfully read a text file in Android, you need to first place the file in an appropriate location within the application folder. The path you specified ("E:testsrccomtestmani.txt") is not a valid path for Android applications.

The recommended approach for reading text files in Android is to use the InputStream class to open a stream to the file and read its contents. However, the path to the file must be correct for this approach to work.

Instead of using hard-coded absolute paths, you should use the openFileInput(String fileName) method to open a stream to a file within the application folder. This method takes the file name as an argument and opens the corresponding stream.

Here's an improved code example that reads the file "mani.txt" from the application folder:

try {
    InputStream instream = openFileInput("mani.txt"); // Opens a stream to the file "mani.txt"
    if (instream != null) {
        InputStreamReader inputreader = new InputStreamReader(instream); // Creates an InputStreamReader to read from the stream
        BufferedReader buffreader = new BufferedReader(inputreader); // Creates a BufferedReader to read the data
        String line, line1 = "";
        try {
            while ((line = buffreader.readLine()) != null) // Read each line
                line1 += line; // Append each line to the final string
        } catch (Exception e) {
            e.printStackTrace(); // Handle any exceptions that may occur
        }
    }
} catch (Exception e) {
    String error = e.getMessage(); // Handle the exception if the file could not be found or opened
}

This code assumes that the "mani.txt" file is located in the application folder. If you need to read a file from a different location, you can use the Environment.getExternalStorageDirectory() method to get the path to the external storage directory.

Alternatively, you can also use the AssetManager class to read files from the assets folder of your application. This method is more suitable if you want to include files in your application package and read them at runtime.

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