| 1. | Which of the following is not OOPS concept in Java? |
| a. | Inheritance |
| b. | Encapsulation |
| c. | Polymorphism |
| d. | Compilation |
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Answer: (d).Compilation
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| 2. | Which of the following is a type of polymorphism in Java? |
| a. | Compile time polymorphism |
| b. | Execution time polymorphism |
| c. | Multiple polymorphism |
| d. | Multilevel polymorphism |
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Answer: (a).Compile time polymorphism
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| 3. | When does method overloading is determined? |
| a. | At run time |
| b. | At compile time |
| c. | At coding time |
| d. | At execution time |
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Answer: (b).At compile time
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| 4. | When Overloading does not occur? |
| a. | More than one method with same name but different method signature and different number or type of parameters |
| b. | More than one method with same name, same signature but different number of signature |
| c. | More than one method with same name, same signature, same number of parameters but different type |
| d. | More than one method with same name, same number of parameters and type but different signature |
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Answer: (d).More than one method with same name, same number of parameters and type but different signature
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| 5. | Which concept of Java is a way of converting real world objects in terms of class? |
| a. | Polymorphism |
| b. | Encapsulation |
| c. | Abstraction |
| d. | Inheritance |
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Answer: (c).Abstraction
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| 6. | Which concept of Java is achieved by combining methods and attribute into a class? |
| a. | Encapsulation |
| b. | Inheritance |
| c. | Polymorphism |
| d. | Abstraction |
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Answer: (a).Encapsulation
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| 7. | What is it called if an object has its own lifecycle and there is no owner? |
| a. | Aggregation |
| b. | Composition |
| c. | Encapsulation |
| d. | Association |
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Answer: (d).Association
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| 8. | What is it called where child object gets killed if parent object is killed? |
| a. | Aggregation |
| b. | Composition |
| c. | Encapsulation |
| d. | Association |
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Answer: (b).Composition
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| 9. | What is it called where object has its own lifecycle and child object cannot belong to another parent object? |
| a. | Aggregation |
| b. | Composition |
| c. | Encapsulation |
| d. | Association |
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Answer: (a).Aggregation
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| 10. | Method overriding is combination of inheritance and polymorphism? |
| a. | True |
| b. | False |
| c. | May be |
| d. | Can't say |
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Answer: (a).True
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