Question

I want to read a text file and parse the string until eof..here is a code snippet.. programs.txt is under assets directory

    public void insert_programs() throws FileNotFoundException {
    BufferedReader bfr = null;
    try {
        bfr = new BufferedReader(new 
                InputStreamReader(getAssets().open("programs.txt"))); // <-- NPE occurs on that line 

    } catch (IOException e) {
        e.printStackTrace();
    }
    Scanner pgm = new Scanner(bfr);
    pgm.useDelimiter("*{3}");
    while (pgm.hasNext()) {
        String str = pgm.next();
            process(str);
        }
    }

Logs

03-14 18:05:34.936: E/AndroidRuntime(467):  at dalvik.system.NativeStart.main(Native Method)
03-14 18:05:34.936: E/AndroidRuntime(467): Caused by: java.lang.NullPointerException
03-14 18:05:34.936: E/AndroidRuntime(467):  at android.content.ContextWrapper.getAssets(ContextWrapper.java:74)
03-14 18:05:34.936: E/AndroidRuntime(467):  at c.theworld.com.nikhil.Database.insert_programs(Database.java:40)

Answer 1

The method ContextWrapper.getAssets() is throwing the NullPointerException. You are extending ContextWrapper (or another class that extends it) and it looks like that has not been initialized properly. The base Context within the ContextWrapper is null.