think about this scenario. Let us say the Automobile Class has a drive() method and the Car class has a drive() method and the Ferrari class has a drive() method too. Let us say you create a new class FerrariF12011 that looks like below:
Public class FerrariF12011 extends Ferrari, Car, Automobile {…}
And at some point of time you need to call the drive() method, what would happen? Your JVM wouldn't know which method to invoke and you may have to instantiate one of the classes that you already inherit in order to call its appropriate method. Sounds confusing right? To avoid this nonsense is why the creators of java did not include this direct multiple inheritance feature.
Similarly, Pointers is where most C programmers make catastrophic errors and the creators of Java thought that the job of messing with memory locations is better left to the experts and hence there is no pointers in java
No. Java was designed with programmer friendliness and ease of maintenance of code in mind. Pointers makes code pretty complicated and providing direct access to the memory can have devastating effects in the hand of a mailcious or an inexperienced programmer. Also, direct multiple inheritance is not supported by java. You can achieve partial multiple inheritance with the help of Interfaces.
Java does not support multiple inheritance
Java does not support multiple inheritance.......
Java does not support direct multiple Inheritance. Harder to implement, not every language support it: C++ does, Java does not.
Java does not support multiple inheritance. It is done with the help of interfaces in java. a class can implement n number of interfaces, thus showing multiple inheritance. but a class cannot extend multiple classes in java.
Java does not support direct multiple inheritance. You can implement partial multiple inheritance using interfaces. ex: public class ExMultInherit implements interface1, interface2, interface 3 { ... .... ...... }
Actually, java does not support multiple inheritance. You can achieve partial multiple inheritance using interfaces but java is not like C or C++ where you can do direct multiple inheritance. However, you can achieve partial multiple inheritance with the help of interfaces. Ex: public class FerrariF12011 extends Ferrari implements Car, Automobile {…} And this is under the assumption that Car and Automobile are interfaces. Here if you see, though you don't inherit concrete code from the Car or the Automobile interface, you do inherit skeleton methods that determine the way your class eventually behaves and hence this can be considered partial Multiple Inheritance.
Yes. Java does not support full fledged/proper multiple inheritance. But, whatever partial inheritance that Java supports can be implemented using interfaces Actually, java does not support multiple inheritance. You can achieve partial multiple inheritance using interfaces but java is not like C or C++ where you can do direct multiple inheritance. However, you can achieve partial multiple inheritance with the help of interfaces. Ex: public class FerrariF12011 extends Ferrari implements Car, Automobile {…} And this is under the assumption that Car and Automobile are interfaces. Here if you see, though you don't inherit concrete code from the Car or the Automobile interface, you do inherit skeleton methods that determine the way your class eventually behaves and hence this can be considered partial Multiple Inheritance.
Java does not support pointers.
JAVA does not support multiple inheritance(i.e more than one class cant be inherited by other classes.) but multiple inheritance is a very important concept . For this reason interface is used which is a kind of class but he difference is that it contains only constant variables and abstract methods. abstract methods contains only the declaration not the codes.
C++ allows multiple inheritance while Java does not. In my opinion, multiple inheritance is not useful because it can get very confusing very quick. For polymorphism, C++ does early binding by default, while Java does late binding by default. Late binding is more useful than early binding.
Inheritance is one of the building blocks of Java and it is used extensively in all java based applications. Inheritance is everywhere in Java. I can't think of one java project that I worked on, where inheritance wasn't used. Inheritance is the feature wherein the properties/qualities of a parent class or interface is used in the child class. Both Classes & Interfaces are used in Java Inheritance