Java is a programming language and to install it you don't need tons of bells and whistles, and we are going to prove it. Your computer just needs to meet the following requirements and you will be good to go.
Operating system: Windows 7 or above, Server 2008, Server 2012 (including R2)
Architecture: Both 32-bit and 64-bit
RAM: 128 MB or above
Space: 124 MB or more for JRE (Java Runtime Environment) + 2 MB for Java Update
Processor: Intel Pentium II 266 MHz CPU  or  above
Browsers: Internet Explorer versions 9 and higher, Mozilla Firefox.