jre is installed instead of jdk in jdk-8u31-windows-x64?

[Matt Taylor]

Hi guys, I want to install a jdk on my new os but everytime I install when I type java -version, it says:

java version "1.8.0_31"
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)

My installer only installs jre and not the whole JDK.
I am using the installer jdk-8u31-windows-x64.

[Liutauras Vilda]

How do you know that installs only jre? Who makes you think like that?

Check javac -version

[Campbell Ritchie]

Don't use JDK8u31, since 8u45 is now available.

[Liutauras Vilda]

Well, Campbell is absolutely right, after you install 8u45, you suppose to get similar to:

bsd-daemon:~ liutaurasvilda$ javac -version
javac 1.8.0_45

[Jesper de Jong]

The JRE is included with the JDK.

When you use the java command to run a Java program, the JRE that is included with the JDK is being used.

The JDK = the JRE + tools such as the Java compiler.

The output you get is normal, there's nothing wrong.

[Matt Taylor]

yes, thank you very much for your response. I did not realize that they also installed and created a folder for jdk alongside jre directory.