MCQ 1 What is it called if an object has its own lifecycle and there is no owner?

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

MCQ 2 How many times does the following code segment execute

int x=1, y=10, z=1; do{y–; x++; y-=2; y=z; z++} while (y>1 && z<10);

(A) 1 (B) 10 (C) 5 (D) infinite

MCQ 3 Which component is responsible to run java program?

(A) JVM (B) JDK (C) JIT (D) JRE

MCQ 4 Which statement is true about java?

(A) Platform independent programming language (B) Platform dependent programming language (C) Code dependent programming language (D) Sequence dependent programming language

MCQ 5 The third type of comment is used by a tool called __________________ for automatic generation of documentation.

(A) Java commenting (B) Java generator (C) Java doc (D) Java loc

MCQ 6 A package is a collection of

(A) classes (B) interfaces (C) editing tools (D) classes and interfaces

MCQ 7 MS-SQL stores data in a _____________ file format.

(A) .DAT (B) .MDB (C) .MSSQL (D) .OBJ

MCQ 8 In Java servlet method init( ) is called _____________ times.

(A) 1 (B) 2 (C) 0 (D) multiple

MCQ 9 The command javac is used to

(A) debug a java program (B) compile a java program (C) interpret a java program (D) execute a java program

MCQ 10 Which method will a web browser call on a new applet?

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

MCQ 11 What is the extension of compiled java classes?

(A) .class (B) .java (C) .txt (D) .js

MCQ 12 Inner classes are

(A) anonymous classes (B) nested classes (C) sub classes (D) derived classes

MCQ 13 In the second type the information written in java after // is ignored by the ______________.

(A) Interpreter (B) Compiler (C) Programmer (D) All of the above

MCQ 14 Ingres is a __________________.

(A) Socket (B) Compiler (C) Database (D) Web server

MCQ 15 By using ________________ you can force immediate termination of a loop, by passing the conditional expression and any remaining code in the body of the loop.

(A) Break (B) Continue (C) Terminate (D) Loop Close

MCQ 16 The class string belongs to ________________ package.

(A) java.awt (B) java.lang (C) java.applet (D) java.string

MCQ 17 State true or false for the following statements in Java.

1. Java beans slow down software development process.
2. Java Servlets do not have built in multithreading feature.
<

(A) 1 − False, 2 − False (B) 1 − False, 2 − True (C) 1 − True, 2 − False (D) 1 − True, 2 − True

Correct Answer Choice A 1 − False, 2 − False
See Answer

MCQ 18 In java, string is a ___________________.

(A) primitive data type (B) abstract data type (C) combination of boolean (D) None of the above

MCQ 19 Method overloading is one of the way that Java supports ______________.

(A) encapsulation (B) class (C) inheritence (D) polymorphism

MCQ 20 Which of the following statements correctly describes an interface?

(A) It’s a concrete class (B) It’s a super class (C) It’s a type of abstract class (D) It’s a subclass

MCQ 21 What is the error in the following code?

class Test { abstract void display( ); }

(A) No error (B) Method display( ) should be declared as static (C) Test class should be declared as abstract (D) Test class should be declared as public

MCQ 22 A method name myMethod( ) that needs two integer arguments is declared as

(A) public void myMethod( ); (B) public void myMethod(int a, int b); (C) public void myMethod(int a, b); (D) public int myMethod(a, b);

MCQ 23 What is byte code in the context of Java?

(A) The type of code generated by a Java compiler (B) The type of code generated by a Java Virtual Machine (C) It is another name for Java source file (D) It is the code written within the instance methods of a class

MCQ 24 Which of the following statements about abstract methods/classes in Java is true?

(A) An abstract class cannot be instantiated. (B) Constructors can be abstract. (C) A subclass of an abstract class must defined the abstract methods. (D) Static methods may be declared abstract.

MCQ 25 We would like to make a member of a class visible in all subclasses regardless of what package they are in. Which one of the following keywords would archive this?

(A) Private (B) Protected (C) Public (D) Private Protected