SAP OO-ABAP (Object Oriented ABAP) Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SAP OO-ABAP (Object Oriented ABAP) Interview Questions

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What is a single-ton class?

How to define a class locally?

What is the difference in an instance method and a static method?

Can we instantiate abstract class in ooabap ?

How to call a method?

What is a class in ooabap?

How to create a global class?

What is alias name in ooabap?

Can we defined a class without a constructor in ooabap ?

What is alias?

What is me variable?

What is a friend class?

What is an event in ooabap ?

How to create an object for private class?

How many types of classes are there in ooabap?

Un-Answered Questions { SAP OO-ABAP (Object Oriented ABAP) }

What is a singleton class in ooabap ?

What is the difference between singleton and static class in sap abap ?

Can we declare events in interface in ooabap ?

How is encapsulation implemented in oops?

Can we instantiate abstract class in ooabap ?

How many types of classes are there in ooabap?

Can we make methods of interface as abstract and final in ooabap ?

What are the core abap oops concepts?

What are the differences local & global classes?

What is an interface in ooabap?

What is the use of 'defination deferred' keyword in ooabap ?

Is it mandatory to implement all methods of interface in the class which includes interface?

What is a narrowing cast? How can you implement it?

What is a reference variable?

How can you implement narrowing cast?

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