java.lang.NumberFormatException: empty String
	at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1842)
	at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
	at java.lang.Double.parseDouble(Double.java:539)
	at java.lang.Double.valueOf(Double.java:503)
	at com.entitcs.office_attendance.activities.Enter_Expense_Of_This_Date$b0.onItemSelected(Unknown Source:88)
	at android.widget.AdapterView.fireOnSelected(AdapterView.java:952)
	at android.widget.AdapterView.dispatchOnItemSelected(AdapterView.java:941)
	at android.widget.AdapterView.-wrap1(Unknown Source:0)
	at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:906)
	at android.os.Handler.handleCallback(Handler.java:790)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:214)
	at android.app.ActivityThread.main(ActivityThread.java:6977)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:528)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:910)