B PLUSTOPPER

  Subjective Paper 1 FOR ICSE X SEMISTER II EXAM Computer Application MARKS: 100                                                                          TIME: 2 hours SECTIONA (40 Marks) Attempt all the questions from this section. Question 1 a) What is a wrapper class Name the wrapper classes used in java.               2 Marks b) Explain autoboxing and unboxing in java.                                                    2 Marks c) what is Inheritance? Which keyword is used to implement inheritance?                                                                                                                         2 Marks d) How do you initialise single ana 2-aimensional arrays? Explain with examples.                                                                                                                               2 Marks e) Give the output of the following program fragment: String s=new String("He went to the market"); String