Platforms to show: All Mac Windows Linux Cross-Platform
/Java/Java Get System Property
Required plugins for this example: MBS Java Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Java/Java Get System Property
This example is the version from Tue, 6th Mar 2023.
Project "Java Get System Property.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Delete"
Const kFileQuit = "&Quit"
Const kFileQuitShortcut = ""
End Class
Class Window1 Inherits Window
EventHandler Sub Open()
#If TargetMacOS Then
// change the path for your installation!
JavaVMMBS.SetLibraryPath("/Library/Java/JavaVirtualMachines/jdk-19.jdk/Contents/Home/lib/server/libjvm.dylib")
#ElseIf TargetLinux Then
// change path for your linux PC!
JavaVMMBS.SetLibraryPath("/home/cs/jre1.6.0_05/lib/i386/client/libjvm.so")
#EndIf
// init Java
Dim options() As String
Dim javaVm As New JavaVMMBS(JavaVMMBS.JNI_VERSION_1_4, options, True)
// Get system class
Dim System As JavaClassMBS = javaVm.FindClass("java/lang/System")
If System <> Nil Then
// query method
Dim transfomerGetPropertyId As JavaMethodMBS = System.GetStaticMethod("getProperty", "(Ljava/lang/String;)Ljava/lang/String;")
If transfomerGetPropertyId <> Nil Then
// make parameters
Dim keyString As JavaStringMBS = javaVm.NewStringUTF8("java.version")
Dim m As New MemoryBlock(8)
m.Int64Value(0)=keyString.Handle
// run it
Dim r As JavaObjectMBS = System.CallStaticObjectMethod(transfomerGetPropertyId, m)
If r<>Nil Then
// show result
Dim s As JavaStringMBS = JavaStringMBS(r)
MsgBox s.CopyStringUTF
End If
End If
End If
End EventHandler
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&File"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "Select &All"
End MenuBar
End Project
See also:
The items on this page are in the following plugins: MBS Java Plugin.