The javacomponent function returns 2 objects: a Java reference and a Matlab container. Simply set the value of the Units property of the Matlab container to ‘normalized’:

[hjSlider, hContainer] = javacomponent(javax.swing.JSlider, pixelPosition, gcf);
hContainer.Units = 'normalized';

You can either use the Java SimpleDateFormat class to convert the date format into your desired output format (read the Java docs online to see how to do this), or use Matlab’s datenum and datestr functions with the appropriate format specifiers (read the corresponding Matlab docs to see how to do this).

example :
system foramt – 1/23/2017
Get Output from your script – mm dd,yyyy

I need output like – dd/mm/yyyy

Thanks in Advance

JAR files contain Java classes, not Matlab figures. The entire blog here discusses Matlab.

Is there a clean way to do it from when your loading a .jar file?

For example I have a .jar file called test.jar
I call it like jFrame=test(); after adding it to the dynamic Java classpath
but that jFrame doesnt have properties to getWindow or JavaFrame?

jFigPeer = get(handle(gcf),'JavaFrame');
jFrame = handle(jFigPeer.fHG2Client.getWindow, 'CallbackProperties');
jFrame.WindowClosingCallback = @myCallback;

>> jScrollbar = javaObjectEDT('javax.swing.JScrollBar');
>> hjScrollbar = handle(jScrollbar,'CallbackProperties');
>> set(hjScrollbar, 'StateChangedCallback', callback);
Error using javahandle_withcallbacks.javax.swing.JScrollBar/set
The name 'StateChangedCallback' is not an accessible property for an instance of class 'javax.swing.JScrollBar'. 
 
>> ver
...
Java Version: Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
...

The problem is java 7 has changed the interface to the component and it is no longer a state change event but an adjustment event.
(see http://www.java2s.com/Code/Java/Swing-JFC/ListeningforScrollbarValueChangesinaJScrollPaneContainer.htm). It is corrected by using hjScroll.AdjustmentValueChangedCallback in this example. Be on the lookout for these types of changes in the java interface.

>> h_evt = handle(evt, 'CallbackProperties');
>> set(h_evt,'TestEventCallback',@(h,e)disp(h))
>> get(h_evt)
                    Class: [1x1 java.lang.Class]
        TestEventCallback: @(h,e)disp(h)
    TestEventCallbackData: []

>> evt.notifyMyTest
	javahandle_withcallbacks.EventTest

But trying something like

>> set(h_evt,'TestEventCallback',@(h,e)disp('test'))
>> h_evt.notifyMyTest
test

demonstrates that it is working. One step at a time.

Thank you! This article helped a lot as well as the previous article: http://undocumentedmatlab.com/blog/matlab-callbacks-for-java-events/.