Static Final Long serialVersionUID = 1L

The serialVersionUID is a universal version identifier for a Serializable class. Deserialization uses this number to ensure that a loaded class corresponds exactly to a serialized object. If no match is found, then an InvalidClassException is thrown.

How to send data to COM PORT using JAVA?

This question has been asked and answered many times: Read file from serial port using Java Reading serial port in Java Reading file from serial port in Java Is there Java library or framework for accessing Serial ports? Java Serial Communication on Windows to reference a few. Personally I recommend SerialPort from http://serialio.com – it’s … Read more

How to read a .csv file into an array list in java?

You don’t need 2D array to store the file content, a list of String[] arrays would do, e.g: Also, it’s good practice to declare the list locally and return it from the method rather than adding elements into a shared list (‘bank’) in your case.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)