Study tips 1Z0-803

Which two actions, used independently, will permit this class to compile?

What is the result?

Which statement, when inserted into line 5, is valid change?

What is the result?

Which code fragment is illegal?

What is the result?

What is the result?

What changes will make this code compile?

What three modifications, made independently, made to class greet, enable the code to compile and run?

What is the result?