What interface must an object implement before it can be written to a stream as an object?
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What is multiple inheritance? How java 8 supports multiple inheritance?
What is meant by inheritance? what are the advantages of inheritance?
What is the function of messaging metaphor?
Why does java not support multiple inheritance?
Can we have a default method definition in the interface without specifying the keyword "default"?
Explain the usage of encapsulation?
Can you think of some nice examples where *multiple* actors are associated with a use case ?
If a method definition has been specified in class , its base class , and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?
How can we call the base method without creating an instance?
What is data encapsulation and what is its significance?
How to achieve data abstraction?
what is the difference between the up phase and up workflows?