java.lang.NumberFormatException: empty String
	at jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1842)
	at jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
	at java.lang.Double.parseDouble(Double.java:543)
	at java.lang.Double.valueOf(Double.java:506)
	at com.entitcs.office_attendance.activities.Enter_Expense_Of_This_Date$4.onItemSelected(Enter_Expense_Of_This_Date.java:339)
	at android.widget.AdapterView.fireOnSelected(AdapterView.java:957)
	at android.widget.AdapterView.dispatchOnItemSelected(AdapterView.java:946)
	at android.widget.AdapterView.-$$Nest$mdispatchOnItemSelected(Unknown Source:0)
	at android.widget.AdapterView$SelectionNotifier.run(AdapterView.java:910)
	at android.os.Handler.handleCallback(Handler.java:984)
	at android.os.Handler.dispatchMessage(Handler.java:104)
	at android.os.Looper.loopOnce(Looper.java:238)
	at android.os.Looper.loop(Looper.java:357)
	at android.app.ActivityThread.main(ActivityThread.java:8094)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:957)