- propertyName
- the name of the system property to look up.
Documentation for this section has not yet been entered.
Returns the value of a particular system property or null if no such property exists.
The following properties are always provided by the Dalvik VM and cannot be modified:
| Name | Meaning | Example |
| file.separator | Java.IO.File.Separator | / |
| java.class.path | System class path | . |
| java.class.version | (Not useful on Android) | 50.0 |
| java.compiler | (Not useful on Android) | Empty |
| java.ext.dirs | (Not useful on Android) | Empty |
| java.home | Location of the VM on the file system | /system |
| java.io.tmpdir | See Java.IO.File.CreateTempFile(string, System.String) | /sdcard |
| java.library.path | Search path for JNI libraries | /vendor/lib:/system/lib |
| java.vendor | Human-readable VM vendor | The Android Project |
| java.vendor.url | URL for VM vendor's web site | http://www.android.com/ |
| java.version | (Not useful on Android) | 0 |
| java.specification.version | VM libraries version | 0.9 |
| java.specification.vendor | VM libraries vendor | The Android Project |
| java.specification.name | VM libraries name | Dalvik Core Library |
| java.vm.version | VM implementation version | 1.2.0 |
| java.vm.vendor | VM implementation vendor | The Android Project |
| java.vm.name | VM implementation name | Dalvik |
| java.vm.specification.version | VM specification version | 0.9 |
| java.vm.specification.vendor | VM specification vendor | The Android Project |
| java.vm.specification.name | VM specification name | Dalvik Virtual Machine Specification |
| line.separator | The system line separator | \n |
| os.arch | OS architecture | armv7l |
| os.name | OS (kernel) name | Linux |
| os.version | OS (kernel) version | 2.6.32.9-g103d848 |
| path.separator | See Java.IO.File.PathSeparator | : |
| user.dir | Base of non-absolute paths | / |
| user.home | (Not useful on Android) | Empty |
| user.name | (Not useful on Android) | Empty |
It is an error to override anyone of these properties. Any attempt to do so will leave their values unchanged.