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diff b/w abstract class and interface

 
Greenhorn
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vat is the difference between abstract class and interface
 
Greenhorn
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1.In abstract class, it is not mandatory to have all methods abstract, but in interface, all methods are abstract.
2.If one class extends abstract class, it can't extend any other class, but if implementing interface, multiple interfaces can be implemented.
 
Ranch Hand
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Vinay & Sumeet,


Check out the following liks for more clarifications

1. Interfaces and abstract classes


For more clarity you can also brush up your mind with below GIven Article.

2. When to use Interface or Abstract Class
 
Consider Paul's rocket mass heater.
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