the output showing is what I get when I verify, yet it verified and completed. Why? How do I get rid of the error and get the output I am expecting? Output java.lang.NullPointerException at com.codegym.task.task07.task0726.Solution.main(Solution.java:25) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498)