1. What will be the output of the following program? class Main1   YYY   Error. Won't compile   XXX followed by YYY   XXX   Hint Half-n-half Clue   2. Consider the following code: class NewString extends java.lang.String   Results in error because class body is not defined   Results in error because java.lang.String isfinal   Compiles successfully   Results in error because String isabstract   Results in error because the class is not declaredpublic   Half-n-half Clue   3. Are there any errors in the following class definition? abstract class Class1   Class header definition is wrong   Method definition is wrong   Constructor needs to be defined   No errors   Half-n-half Clue   4. For the following class definition, which is a legal statement to construct an object of type Class1: class Class1 extends Class2   (A)   (C) & (E)   (A) & (B)   (C) & (D)   None of the above   Half-n-half Clue   5. The method int func(int i, int j)   (B) & (C)   (C) & (D)   (A), (B), (C) & (E)   (A), (B) & (E)   None of these   Half-n-half Clue   6. To print the value of a variable "x" of type int, which of the following expressions can be used: (A) System.out.println("x = " + x); (B) System.out.println("x = " + String.valueOf(x)); (C) System.out.println("x = " + Integer.toString(x)); (D) System.out.println("x = " + (new Integer(x)).toString());   (C) and (D)   (A), (B), (C) and (D)   (B), (C) and (D)   (B) and (D)   Half-n-half Clue   7. Which of the following expressions will produce errors upon compilation? (A) boolean a = (boolean) 1; (B) boolean b = (false && true); (C) float y = 22.3;   (A), (C) & (D)   (A)   (A) & (C)   (A), (B) & (D)   Half-n-half Clue