1. 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   Hint Half-n-half Clue   2. 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   3. Which lines of the following will produce an error? 1. byte a1 = 2, a2 = 4, a3; 2. short s = 16; 3. a2 = s; 4. a3 = a1 * a2; (The lines are numbered only for illustration in this question.)   Line 1 and Line 4   Line 3 only   Line 1 only   Line 4 only   Line 3 and Line 4   Half-n-half Clue   4. Examine the following code snippets to identify the legal loop constructs: (A) for (int i = 22, int j = 0; i + j > 11; i = i-3, j++)   (A) & (C)   (A)   (A) & (D)   (B)   Half-n-half Clue   5. 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), (B) & (D)   (A)   (A), (C) & (D)   (A) & (C)   Half-n-half Clue   6. What is java_g used for?   To provide information about deprecated methods   None of these   Executing a class with optimization turned off   Using the jdb tool   Half-n-half Clue   7. Determine the output when the value of x is zero: if(x >= 0) if(x > 0) System.out.println("x is positive"); else System.out.println("x is negative");   "x is positive"   "x is negative"   None of these   "x is positive" and "x is negative"   Half-n-half Clue