Search Interview Questions
| 3180 questions in repository.|
There are more than 200 unanswered questions.
Click here and help us by providing the answer.
Have a video suggestion.
Click Correct / Improve and please let us know.
|Java - Interview Questions and Answers|
|Ans. 1. Memory is allocated from heap to hold all instance variables and implementation-specific data of the object and its superclasses. Implemenation-specific data includes pointers to class and method data.|
2. The instance variables of the objects are initialized to their default values.
3. The constructor for the most derived class is invoked. The first thing a constructor does is call the constructor for its superclasses. This process continues until the constructor for java.lang.Object is called,as java.lang.Object is the base class for all objects in java.
4. Before the body of the constructor is executed, all instance variable initializers and initialization blocks are executed. Then the body of the constructor is executed. Thus, the constructor for the base class completes first and constructor for the most derived class completes last.
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve java memory management object creation advanced ebay|
|What are different ways of object creation in Java ?|
|Does Constructor creates the object ?|
|Difference between new operator and Class.forName().newInstance() ?|
|Difference between Class#getInstance() and new operator ?|
|In a case where there are no instance variables what does the default constructor initialize?|
|How can we prevent duplicate object creation in Java?|