public static long readLong ( InputStream source ) throws IOException { int b1 = source . read ( ) ; int b2 = source . read ( ) ; int b3 = source . read ( ) ; int b4 = source . read ( ) ; int b5 = source . read ( ) ; int b6 = source . read ( ) ; int b7 = source . read ( ) ; int b8 = source . read ( ) ; if ( ( b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 ) < 0 ) { throw new EOFException ( ) ; } else { return ( ( long ) b1 << 56 ) + ( ( long ) ( b2 & 255 ) << 48 ) + ( ( long ) ( b3 & 255 ) << 40 ) + ( ( long ) ( b4 & 255 ) << 32 ) + ( ( long ) ( b5 & 255 ) << 24 ) + ( long ) ( ( b6 & 255 ) << 16 ) + ( long ) ( ( b7 & 255 ) << 8 ) + ( long ) ( ( b8 & 255 ) ) ; } }
Reads a 64 - bit long from the given InputStream that was encoded using BitConverter . writeLong .