Abstract class | Interface |
---|---|
1) Abstract class can have abstract and non-abstractmethods. | Interface can have only abstract methods. |
2) Abstract class doesn't support multiple inheritance. | Interface supports multiple inheritance. |
3) Abstract class can have final, non-final, static and non-static variables. | Interface has only static and final variables. |
4) Abstract class can have static methods, main method and constructor. | Interface can't have static methods, main method or constructor. |
5) Abstract class can provide the implementation of interface. | Interface can't provide the implementation of abstract class. |
6) The abstract keyword is used to declare abstract class. | The interface keyword is used to declare interface. |
7) Example: public class Shape{ public abstract void draw(); } | Example: public interface Drawable{ void draw(); } |
Saturday, 14 March 2015
Difference between Abstract class and interface
Labels:
Java
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