MCQ 1 Which of the following is a type of polymorphism in Java?

(A) Compile time polymorphism (B) Execution time polymorphism (C) Multiple polymorphism (D) Multilevel polymorphism

MCQ 2 When does method overloading is determined?

(A) At run time (B) At compile time (C) At coding time (D) At execution time

MCQ 3 When Overloading does not occur?

(A) More than one method with same name but different method signature and different number or type of parameters (B) More than one method with same name, same signature but different number of signature (C) More than one method with same name, same signature, same number of parameters but different type (D) More than one method with same name, same number of parameters and type but different signature

MCQ 4 Which concept of Java is a way of converting real world objects in terms of class?

(A) Polymorphism (B) Encapsulation (C) Abstraction (D) Inheritance

MCQ 5 Java programs are

(A) Faster than others (B) Platform independent (C) Not reusable (D) Not scalable

MCQ 6 Which concept of Java is achieved by combining methods and attribute into a class?

(A) Encapsulation (B) Inheritance (C) Polymorphism (D) Abstraction

MCQ 7 Which of the following is not OOPS concept in Java?

(A) Inheritance (B) Encapsulation (C) Polymorphism (D) Compilation

MCQ 8 Which of the below is invalid identifier with the main method?

(A) public (B) static (C) private (D) final

MCQ 9 Command to execute compiled java program is

(A) java (B) javac (C) run (D) javaw

MCQ 10 State weather the following statement is true or false for EJB.

1. EJB exists in the middle-tier
2. EJB specifies an execution environment
3. EJB supports transaction processing
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(A) 1 − True, 2 − True, 3 − True (B) 1 − True, 2 − False, 3 − True (C) 1 − False, 2 − False, 3 − False (D) 1 − True, 2 − True, 3 − False

Correct Answer Choice A 1 − True, 2 − True, 3 − True
See Answer

MCQ 11 What is use of interpreter?

(A) They convert bytecode to machine language code (B) They read high level code and execute them (C) They are intermediated between JIT and JVM (D) It is a synonym for JIT

MCQ 12 In java, __________________ can only test for equality, where as _________________ can evaluate any type of the Boolean expression.

(A) switch, if (B) if, switch (C) if, break (D) continue, if

MCQ 13 The compiled java program can run on any ____________ plateform having Java Virtual Machine (JVM) installed on it.

(A) program (B) java (C) hardware (D) non java

MCQ 14 What would happen if "String[]args" is not included as argument in the main method.

(A) No error (B) Compilation error (C) Program won’t run (D) Program exit

MCQ 15 The command javac

(A) Converts a java program into binary code (B) Converts a java program into bytecode (C) Converts a java program into machine language (D) None of the above

MCQ 16 ____________are not machine instructions and therefore, Java interpreter generates machine code that can be directly executed by the machine that is running the Java program.

(A) Compiled Instructions (B) Compiled code (C) byte code (D) Java mid code

MCQ 17 Which method will a web browser call on a new applet?

(A) main method (B) destroy method (C) execute method (D) init method

MCQ 18 What is it called where child object gets killed if parent object is killed?

(A) Aggregation (B) Composition (C) Encapsulation (D) Association

MCQ 19 Which one of the following is true for Java

(A) Java is object oriented and interpreted (B) Java is efficient and faster than C (C) Java is the choice of everyone. (D) Java is not robust.

MCQ 20 Which one of the following is true for Java

(A) Java is object oriented and interpreted (B) Java is efficient and faster than C (C) Java is the choice of everyone. (D) Java is not robust.

MCQ 21 Java servlets are an efficient and powerful solution for creating ___________ for the web.

(A) Dynamic content (B) Static content (C) Hardware (D) Both A and B

MCQ 22 The JDBC-ODBC bridge allows ________________ to be used as ________________ .

(A) JDBC drivers, ODBC drivers (B) Drivers, Application (C) ODBC drivers, JDBC drivers (D) Application, drivers

MCQ 23 OOP features are

1. Increasing productivity
2. Reusability
3. Decreasing maintenance cost
4. High vulnerability
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(A) 1,2 & 4 (B) 1,2 & 3 (C) 1, 2 & 4 (D) none of the above

Correct Answer Choice B 1,2 & 3
See Answer

MCQ 24 Which of the following represent legal flow control statements?

(A) break; (B) break(); (C) continue(inner); (D) exit();

MCQ 25 If m and n are int type variables, what will be the result of the expression m%n when m = -14 and n = -3?

(A) 4 (B) 2 (C) -2 (D) -4