The long data type can have values from -2 63 to 2 63-1 (64-bit signed two's complement integer). Choose the most popular programs from Business software. The 16 lessons total about 3 1/4 hours and are each between 9 and 14 minutes long. No prior experience with Eclipse or Java is assumed. This free video tutorial will help get you started writing Java programs using Eclipse version 3.3. Java Runtime Environment 1 8 0 free download - Java Runtime Environment (JRE) (64-Bit), GTK+ 2 Runtime Environment, Java SE Development Kit 8, and many more programs.