Technical Field Of Java Development And Programming

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1. Synchronized is a keyword to tell a Thread to grab an Object lock before continuing execution.
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Technical Field Of Java Development And Programming - Quiz

This test will measure the applicants knowledge and competency in the technical field of Java development and programming

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2. Methods that are marked protected can be called in any subclass of that class.
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3. An abstract class can have non-abstract methods.
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4. Primitive datatypes are allocated on a stack.
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5. Can you compare a boolean to an integer?
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6. Inner classes can be defined within methods.
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7. If class A implements an interface does it need to implement all methods of that interface?
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8. Java keywords are written in lowercase as well as uppercase
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9. Following code will result in: int a1 = 5; double a2 = (float)a1;
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10. A class cannot be declared
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11. A class can be transient
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12. What is an instanceof
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13. Following code will result in: int a = 3.5;
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14. Following code will result in: class A { int b = 1; public static void main(String [] args) { System.out.println("b is " + b); }}
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15. Following code will result in: class A { public static void main(String [] args) {B b = new A(); }} class B extends A {}
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16. What is the size of a Char?
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17. Following code will result in: class A { public static void main(String [] args) {A a = new B(); }} class B extends A {}
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18. The default statement of a switch is always executed
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19. What is default layout manager for panels and applets?
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20. The methods wait(), notify() and notifyAll() in Object need to be called from synchronized pieces of code
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21. Integer a = new Integer(2); Integer b = new Integer(2); What happens when you do if (a==b)?
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22. Following code will result in: int a = 9/0;
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23. You execute the code below in an empty directory. What is the result? File f1 = new File("dirname"); File f2 = new File(f1, "filename");
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24. Following code will result in: float a = 9/0;
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25. Which one does not extend java.lang.Number
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26. Which of the following statements are true?
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Synchronized is a keyword to tell a Thread to grab an Object lock...
Methods that are marked protected can be called in any subclass of...
An abstract class can have non-abstract methods.
Primitive datatypes are allocated on a stack.
Can you compare a boolean to an integer?
Inner classes can be defined within methods.
If class A implements an interface does it need to implement all...
Java keywords are written in lowercase as well as uppercase
Following code will result in: int a1 = 5; double a2 = (float)a1;
A class cannot be declared
A class can be transient
What is an instanceof
Following code will result in: int a = 3.5;
Following code will result in: class A { int b = 1; public static void...
Following code will result in: class A { public static void...
What is the size of a Char?
Following code will result in: class A { public static void...
The default statement of a switch is always executed
What is default layout manager for panels and applets?
The methods wait(), notify() and notifyAll() in Object need to be...
Integer a = new Integer(2); Integer b = new Integer(2); What happens...
Following code will result in: int a = 9/0;
You execute the code below in an empty directory. What is the result?...
Following code will result in: float a = 9/0;
Which one does not extend java.lang.Number
Which of the following statements are true?
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