Instruction
- Total number of questions : 10.
- Time alloted : 10 minutes.
- Each question carry 1 mark.
- No Negative marks
- DO NOT refresh the page.
- All the best :-).
| 1. |
Which of these keywords is used to make a class? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: None. |
| 2. |
What is the process of defining more than one method in a class differentiated by method signature? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: Function overloading is a process of defining more than one method in a class with same name differentiated by function signature i:e return type or parameters type and number. Example – int volume(int length, int width) & int volume(int length , int width , int height) can be used to calculate volume. |
| 3. |
Which keyword is used by method to refer to the object that invoked it? |
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Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: this keyword can be used inside any method to refer to the current object. this is always a reference to the object on which the method was invoked. |
| 4. |
Which of these can be overloaded? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: None. |
| 5. |
Which of these is used to access member of class before object of that class is created? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: None. |
| 6. |
Which of these keywords is used to prevent content of a variable from being modified? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: A variable can be declared final, doing so prevents its content from being modified. Final variables must be initialized when it is declared. |
| 7. |
Which of these method of String class is used to obtain character at specified index? |
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Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: None. |
| 8. |
Which of these keywords is used to refer to member of base class from a sub class? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: whenever a subclass needs to refer to its immediate superclass, it can do so by use of the keyword super. |
| 9. |
What is the process of defining a method in subclass having same name & type signature as a method in its superclass? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: None. |
| 10. |
Which of these method of Object class can clone an object? |
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Test 1