1. 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)   (A)   (A), (C) & (D)   (A), (B) & (D)   Hint Half-n-half Clue   2. 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 only   Line 4 only   Line 3 only   Line 3 and Line 4   Line 1 and Line 4   Half-n-half Clue   3. 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)   (A) & (C)   (B)   (A) & (D)   Half-n-half Clue   4. What will be the output of the following program? class Main2   Error. Won't compile   XXX   XXX followed by YYY   YYY   Half-n-half Clue   5. Which error does the following code contain: class Class1   Class1 should be declared as abstract   Method func1() must be declared as static   There is no error   Class Class1 has not been declared public   Half-n-half Clue   6. 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 positive" and "x is negative"   None of these   "x is negative"   Half-n-half Clue   7. The control expression in an "if" statement must be:   an expression with either the type boolean or integer with value 0 or 1   an expression with type boolean   an expression with either the type boolean or integer   an expression with type integer   Half-n-half Clue