| Abstract method | Virtual method |
| 1) Abstract method doesn’t have any body defined. | 1) Virtual method have their body defined otherwise it will give compile-time error message “<VirtualMethod()> must declare body because it is not defined abstract, extern, or partial. |
| 2) Mandatory to implement them. | 2) Not mandatory to override them. |
| 3) They can be defined in abstract classes only. | 3) They can be defined in any instance class. |
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