Question

I am trying to convert Strings to their integer equivalents for faster comparison using ByteBuffer (java.nio.ByteBuffer).

I got a very peculiar exception using ByteBuffer.

public class LargeCompare {

    public static void main(String args[]){
        byte[]b ="zzz".getBytes();
        ByteBuffer bb = ByteBuffer.wrap(b);
        bb.getInt();
    }
}

The above code does not raise an exception for strings of length 4 but raises one for ones of length 3 and less.

Can anyone help me in fixing this?

Answer 1

An int is 32 bits, or 4 bytes, wide. You are a trying to read an int from a buffer that’s shorter than this. This is why you’re getting the exception.

I don’t really follow where you’re going with this, so will refrain from making suggestions.