(a) (i) int res = 'A'; What is the value of res?

Value of res is 65 which is the ASCII code of A. As res is an int variable and we are trying to assign it the character A so through implicit type conversion the ASCII code of A is assigned to res.

(ii) Name the package that contains wrapper classes.

java.lang

(b) State the difference between while and do while loop.

while	do-while
It is an entry-controlled loop.	It is an exit-controlled loop.
It is helpful in situations where numbers of iterations are not known.	It is suitable when we need to display a menu to the user.

(c) System.out.print("BEST ");
     System.out.println("OF LUCK");

Choose the correct option for the output of the above statements

1. BEST OF LUCK
2. BEST
   OF LUCK

Option 1 — BEST OF LUCK is the correct option.
System.out.print does not print a newline at the end of its output so the println statement begins printing on the same line. So the output is BEST OF LUCK printed on a single line.

(d) Write the prototype of a function check which takes an integer as an argument and returns a character.

char check(int a)

(e) Write the return data type of the following function.

1. endsWith()
2. log()

1. boolean
2. double