OOAD Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOAD Interview Questions

Questions Answers Views Company eMail

What are the types of polymorphism?

1012

What is inheritance in java?

2 1365

What is abstract method?

1058

If there is a conflict between base class method definition and interface default method definition, which definition is picked?

1 1926

Can we have default method with same name and signature in the derived interface as the static method in base interface and vice versa?

1084

What if we make the method as abstract in another interface?

1050

What is the @functionalinterface annotation?

991

Can we have a default method definition in the interface without specifying the keyword "default"?

1014

What is a nested interface?

1093

If a method definition has been specified in the 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?

1018

Can we use static method definitions in interfaces?

1102

Can a class implement two interfaces having default method with same name and signature?

1056

What if we override the conflicting method in the class?

1001

Can we override static methods? Why?

1005

Can we access interface static method using interface references?

1112

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Un-Answered Questions { OOAD }

What is data encapsulation and what's its significance?

1095

What is a static method? Why do we need static methods in java 8 interfaces?

1244

what is full form OOP?

1126

Define exceptions?

981

What are base class, sub class and super class?

1123

What is meant by function overloading and function overriding?

1036

What is difference between static and non-static fields of a class?

1159

What is the difference abstract class and interface?

1027

Explain about the analysis phase?

1040

What are abstract classes?

1049

Can an interface contain fields?

1033

Does PowerShell support OOPs?

1075

Explain the term constructor

1098

What are the limitations of oops?

1060

What is the base type from which all structs inherit directly?

975

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