What are null interfaces in JAVA ? and give me some
examples?
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Answer / therathna
null interfaces in java are taged interfaces or mark
interfaces those are serialization, clonable , SingleThread
| Is This Answer Correct ? | 26 Yes | 3 No |
null interface is such which have no abstract methods
declaration in interface definition. For Ex. Clonable
interface.
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / abc
NULL Interface are marker interface in JAVA, when any class
implements such marker interface then object of that class are
being handeled differently by JVM
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / kalyan
Null interfaces are act as makers ...they just tell the
complier that the objects treated as a differently by
JVM...Examples of null interfaces is
serializable ,remote,Cloneable
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / shailesh
Null interfaces are just the normal interfaces. But with
these, our classes will be having some additional
functionality. Like, clone() method is not defined in
Cloneable interface but we can make it available for our
class by letting it use cloneable(allowing my class to
clone the objects or just giving permission to do so).
So, these just be treated as a marker interfaces that marks
our class with additional functionality.
| Is This Answer Correct ? | 1 Yes | 0 No |
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33. try { 34. // some code here 35. } catch (NullPointerException e1) { 36. System.out.print(”a”); 37. } catch (RuntimeException e2) { 38. System.out.print(”b”); 39. } finally { 40. System.out.print(”c”); 41. } What is the result if a NullPointerException occurs on line 34? 1 c 2 a 3 ab 4 ac
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