Talent Next Java MCQ-1

Which is the portability and security cause in Java?

• The applet makes the Java code secure and portable

• Bytecode is executed by JVM

• handling Dynamic binding between objects

• Use of exception

Which of the following is not a Java features?

• Dynamic

• Architecture Neutral

• Object-oriented

• Use of pointers

Which component is responsible to run java program?

• JVM

• JDK

• JIT

• JRE

Which of the below is/are valid identifier with the main method?

• public

• private

• static

• this

What is the extension of java code files?

• .class

• .txt

• .java

• .js

Converting real world objects in terms of class in java?

• Polymorphism

• Encapsulation

• Abstraction

• Inheritance

1. class main_class

2. {

3. public static void main(String args[])

4. {

5. int y = 10;

6. if (y == 10)

7. {

8. int y = 11;

9. System.out.println(y);

10. }

11. }

12. }

• Compilation error

• 10

• 11

• Run time error

class KIET_Test {

int x;

}

class Main {

public static void main(String args[]) {

KIET_Test t = new KIET_Test();

System.out.println(t.x);

}

}

• garbage value

• 0

• compiler error

• runtime error

Which of the following is a valid declaration of an object of class Box?

• Box obj = new Box;

• Box obj = new Box();

• obj = new Box();

• new Box obj;

Which of these operators is used to allocate memory for an object?

• malloc

• alloc

• new

• this