Friday, June 13, 2014

10 OCJP questions to puzzle you

3:05 PM

We are compiling 10 OCJP question with explanation for every question.
Use the basic java concept to answer all the below questions.


Question :1 

Explanation:

Choice B is correct.


When we compile above code we wont get any error as it is legal to write class in 

interface.


Question :2

Explanation:

Choice A is correct.


private members of a class can be accessed with in the class. According to this statement 

the inner class can also access the private member of a outer class


Question :3


Explanation:

Choice A is correct.


Arrays are objects because of which we will get true. InstanceOf can be used as variable 

so 10 will be printed


Question :4


Explanation:

Choice B is correct.


Creating File instance will not create a file, once we say createNewFile() with file instance 

then only a file will be created. so first f.exists() will give false and second f.exists() will 

give true

Question :5



Question :6

Explanation:

Choice C is correct.


Index based remove() method will return element at the specified position in this list.


Question :7


Explanation:

Choice A is correct.


Thread prioriy will have same priority as the priority of thread created it.

Question :8


Explanation:

Choice D is correct.


Character class don't have constructor which accepts String as argument.

Question :9



Question :10



You can check more questions on SCJP here.









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