JAVA CONCEPTS

Important Java Mcq 1

Java servlet is __ programming?

a. Client side

b. Server side

c. User side

d. None of the above.

Answer:

b. Server side

Explanation

Java servlets are server side programs that handle client’s request and return a customized or dynamic response for each request. The dynamic response could be based user’s input with data retrieved from databases or other applications, or time-sensitive data.

In Java control statements break, continue, return, try-catch-finally, and assert belong to?

a) Select statements b) Loop Statements c) Transfer statements d) Pause Statement Answer c) Transfer statements

Which of the following is a mutable class in java?

a) java.lang.String b) java.lang.Byte c) java.lang.Short d) java.lang.StringBuilder Answer d) java.lang.StringBuilder

Which of the following are not Java keywords?

a) Double b) Switch c) Then d) Instanceof Answer: c) Then

Which of the following are valid array declarations?

a. int number(); b. float average[]; c. counter int[]; d. []double marks; Answer: b. float average[]; Explanation: The correct syntax for declaring an array is