In the Java installation directory, why are there multiple Java Exe file?

• Java

Just curious about the directory layout of JDK So there are two separate Java Exe file – one in:

C:\Program Files (x86)\Java\jdk1.7.0_45\bin

One at:

C:\Program Files (x86)\Java\jdk1.7.0_45\jre\bin

Why do I need two files? The motivation for this problem comes from the challenges of installing a program (SQL developer)

Solution

There is a difference between installing JDK and JRE

JDK package is a developer package, including tools such as compiler (javac)

JRE package is the core runtime package and contains all software written by JVM / runtime environment / JVM language

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