To install Java:
For 32-bit Windows, download 32-bit Java.
For 64-bit Windows, download 64-bit Java, 32-bit Java, or both.
Java software, or the Java Runtime Environment, is also referred to as the Java Runtime, Runtime Environment, Runtime, JRE, Java Virtual Machine, Virtual Machine, Java VM, JVM, VM, Java plug-in, Java plugin, Java add-on or Java download.
The website may refer to “browser”, since Java is also often installed as a web browser plug-in.
The current version of Java is “Version 8” that corresponds to “Build 1.8”. For example, “Version 8 Update 101” corresponds to “Build 1.8.0_101”.
Refer also to the post How to determine which version and edition of Java is installed?.