10 B4. Answer the following questions: a. Analyze the following Java code and complete the missing code 16 marks /* The code should read the content of a text file "tast.txt and print its content in the console. / try! file = input = while System.out.println( > ) input.close(): ) catch (FileNotFoundException ex) { System.out.println(ex.getMessage()); ) b. According to Class Design Guidelines, a class should describe a single entity, and all the class operations should logically fit together to support a coherent purpose Give an example to explain this guideline, 14 marks)