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11 Cards in this Set
- Front
- Back
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Polymorphism |
Is a concept by which we can perform a single action by different ways |
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2 types of polymorphism |
1.runtime polymorphism 2.upcasting |
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Runtime polymorphism or dynamic method dispatch |
Is a process in which a call to an overidden method is resolve at runtime rather that compile time. |
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Upcasting |
When reference variable of parent class refers to the object of child class it is know as upcasting |
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Encapsulation |
Process of wrapping code and data togerther into a single unit. |
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Advantage of encapsulation in java |
Providing only setter or getter method you can make the class read oly or write only |
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Access modifier |
Specifies accessibility of a data member, method, constructor or class |
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4types of access modifier |
-private -default -protected -public |
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Private acces modifier |
Accessible only within class |
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Default access modifier |
Accessible only within package |
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Protected access modifier |
Accessible within package and outside the package but through inheritance only |
