Question

(a) What will be the output of the following codes:
(i) System.out.println(Math.abs(Math.ceil( -3.2))); [2]
(ii) System.out.println(Character.isLetterOrDigit(‘2’)); [2]
(iii) System.out.println((char) ‘x’+ ‘X’);

Answer 1

Answer:

(i) 3

(ii) true

(iii) Ï ( or something like that)

Explanation:

(i) math.ceil(-3.2) will return the nearest and larger int value of it which is -3 and math.abs(-3) will return the absolute value of -3 = 3

(ii) the function returns true if the value in its parenthesis is a letter or a digit otherwise false

(iii) 'x' +'X' = 120+88 = 208 and the char value of 208 is something like Ï