The JDK (Java Development Kit) is the core software environment used to develop Java applications. Update 161 was a scheduled . Java SE 8 : The major platform version.
: Includes the JRE (Java Runtime Environment), the Java compiler ( javac ), and tools like javadoc and jar . Key Features and Fixes in Update 161 jdk-8u161-windows-x64.exe
: Developers often need to match the exact version used in their production environment to debug "it works on my machine" issues. The JDK (Java Development Kit) is the core
: Right-click jdk-8u161-windows-x64.exe and select "Run as Administrator." the Java compiler ( javac )