General Questions

Question 11 :

What is the numerical range of char?


A). 0 to 32767
B). 0 to 65535
C). -256 to 255
D). -32768 to 32767
Answer : Option B

Explanation :

The char type is integral but unsigned. The range of a variable of type char is from 0 to 216-1 or 0 to 65535. Java characters are Unicode, which is a 16-bit encoding capable of representing a wide range of international characters. If the most significant nine bits of a char are 0, then the encoding is the same as seven-bit ASCII.


Question 12 :

Which of the following are Java reserved words?

1. run
2. import
3. default
4. implement


A). 1 and 2
B). 2 and 3
C). 3 and 4
D). 2 and 4
Answer : Option B

Explanation :

(2) - This is a Java keyword
(3) - This is a Java keyword
(1) - Is incorrect because although it is a method of Thread/Runnable it is not a keyword
(4) - This is not a Java keyword the keyword is implements