mac下查看jdk安裝版本及安裝目錄

使用IntelliJ idea新建工程時需要查看jdk安裝目錄，記錄下來為以后備用。

mac自帶jdk，查看jdk版本：

IcarusdeMacBook-Pro:~ icarus$ java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

查看jdk安裝目錄：

IcarusdeMacBook-Pro:~ icarus$ /usr/libexec/java_home -V
Matching Java Virtual Machines (1):
    1.8.0_144, x86_64:	"Java SE 8"	/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home

/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home

　　最后一行/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home即是jdk目錄，填入到IntelliJ idea相應位置即可。