Java ObjectInputStream readFully() Method
The readFully() method of ObjectInputStream class is used to read bytes until all the bytes in the objectinputstream are completely read. It takes 3 parameters as the buffer to which the data is stored , from where to start reading, and how many bytes to read.
buf - the buffer into which the data is read
off - the start offset into the data array buf
len - the maximum number of bytes to read
NullPointerException - If buf is null.
IndexOutOfBoundsException - If off is negative, len is negative, or len is greater than buf.length - off.
EOFException - If end of file is reached.
IOException - If other I/O error has occurred.
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