Spartan Java

File file = new File("/somepath/myfile.ext");
FileInputStream is = new FileInputStream(file);
 
// Get the size of the file
long length = file.length();
 
if (length > Integer.MAX_VALUE) {
	throw new IOException("The file is too big");
}
 
// Create the byte array to hold the data
byte[] bytes = new byte[(int)length];
 
// Read in the bytes
int offset = 0;
int numRead = 0;
while (offset < bytes.length
	   && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) {
	offset += numRead;
}
 
// Ensure all the bytes have been read in
if (offset < bytes.length) {
	throw new IOException("The file was not completely read: "+file.getName());
}
 
// Close the input stream, all file contents are in the bytes variable
is.close();