Which of the following is a valid comment in Java language?

1. /*comment*//
2. /* comment
3. //comment
4. */ comment */

Which of the following is used to enclose a set of statements to form a compound statement in Java program?

1. Parenthesis
2. Brackets
3. Curly brackets
4. All of them

Due to which of the following errors, a program does not provide correct result although it has no grammatical mistake?

1. Logical
2. Syntax
3. Type mismatch
4. None of the above

A Java statement is given as:
if((a!=b)&&(a==c))

Which of the following statements is true?

1. b is the smallest number
2. b is the greatest number
3. a is the smallest number
4. Both (a) and (b)