1. 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 3 only   Line 1 and Line 4   Line 3 and Line 4   Line 1 only   Line 4 only   Hint Half-n-half Clue   2. 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 negative"   "x is positive"   "x is positive" and "x is negative"   None of these   Half-n-half Clue   3. 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) and (D)   (B), (C) and (D)   Half-n-half Clue   4. The control expression in an "if" statement must be:   an expression with type boolean   an expression with type integer   an expression with either the type boolean or integer with value 0 or 1   an expression with either the type boolean or integer   Half-n-half Clue   5. Consider the following code: int i = 1; switch(c)   output will be One   output will be One, followed by Two, and then followed by Three   output will be One followed by Two   code is illegal and therefore will not compile   Half-n-half Clue   6. Consider the following code: class NewString extends java.lang.String   Results in error because class body is not defined   Results in error because the class is not declaredpublic   Compiles successfully   Results in error because java.lang.String isfinal   Results in error because String isabstract   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)   (A) & (C)   (A), (C) & (D)   (A), (B) & (D)   Half-n-half Clue   FREE PREVIEW: Last 9 Questions not a part of the free preview. Get Premium Membership to view all questions.