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Why can't method override be used without inheritance?
Overriding a method means that you are replacing an existing or virtual method that has already been defined in the parent object class, so without using inheritance, there can be no existing method to override.
Why is multiple inheritance implemened through interfaces?
Interfaces have only methods declared and not defined. So that these various methods can be altered or customized or written according to the need. Hence Multiple inheritance is implemented through Interfaces.Interface is a progam which just declares various methods or functions, so that any user can write the contents of that method declaration.AnswerTrue Multiple Inheritance refers to the ability to inherit from multiple CLASSES. Thus, a true multiple inheritance language does not use interfaces. However, many single-inheritance languages provide most of the benefits of the multiple inheritance concept by using interfaces (Java, for example). The problem with true Multiple Inheritance is twofold:(a) at the compiler and runtime level, it is often difficult to determine which method is being referred to, as M.I. can lead to very convoluted (and sometimes conflicting) namespaces(b) there is no specific superclass, which can lead to problems with determining relationships between classesUsing a S.I. model with interfaces avoids these two problems.
Why java do not support multiple inheritance?
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. If you are curious asking me why doesn't java allow multiple inheritance, 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.
How can you write multiple inheritance program 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 { ... .... ...... }
How multiple inheritance achived in java?
Let me explain with a example. Suppose consider a method funX() which is in class Z. Suppose a programmer ABC inherited the class Z to class X and overrided the funX().So this class will have the new implementation of funX(). Suppose a programmer DEF inherited the class Z to class Y and overrided the funX().So this class will have the new implementation of funX(). If Multiple Inheritance is permitted in java, then if the new programmer inherited both the classes and he didn't done any overriding of method funX() then if he calls the funX() ,the JVM will not know which method to call i.e., either the method in class X or method in class Y. Because of this inconsistencies,Multiple inheritance is not permitted in java.
Is it possible to implement method overriding in each and every type of inheritance?
Yes. Method Overriding is not possible without inheritance and it can be done in all possible types of inheritance.
Why can't method override be used without inheritance?
Overriding a method means that you are replacing an existing or virtual method that has already been defined in the parent object class, so without using inheritance, there can be no existing method to override.
What is a dominate genetic disease?
Achrondoplasia (dwarfism) is one. Another is Huntington's disease.
Is achondroplasia in a sex or somatic cell?
Achrondoplasia is in all of the cells that have genes in them, not just the sex cells or somatic cells.
Is it possible to implement method overriding every type of inheritance?
yes if larry has a mustache
What is the difference between class inheritance and interface inheritance?
interface inheritance is a misleading term. Interface inheritance would be equivalent to the union of the method signatures of interfaces ( no typo here, an interface may implment multiple other interfaces) Class inheritance - single hierarchy (in C#), and not only the methods are inherited, but also the data members. (interface in C# cannot define data members)
The inheritance of Marfan syndrome is an example of?
The "autosomal dominant" method of inheritance. if your question as Marfan syndrome is the result of inheriting a single allele. Individuals with Marfan syndrome are tall and long-limbed, and have both cardiovascular and eye defects. The inheritance of Marfan syndrome is an example of ______. then the answer is pleiotropy
What experiment method did gregor Mendels use during his study of inheritance?
Gregor Mendels goal was to figure genetics
What kind of mutation occurs in achondroplasia disease?
Someone with achrondoplasia is short, has small legs and arms but a normal sized trunk and head, and has weaker bones.
Why is multiple inheritance implemened through interfaces?
Interfaces have only methods declared and not defined. So that these various methods can be altered or customized or written according to the need. Hence Multiple inheritance is implemented through Interfaces.Interface is a progam which just declares various methods or functions, so that any user can write the contents of that method declaration.AnswerTrue Multiple Inheritance refers to the ability to inherit from multiple CLASSES. Thus, a true multiple inheritance language does not use interfaces. However, many single-inheritance languages provide most of the benefits of the multiple inheritance concept by using interfaces (Java, for example). The problem with true Multiple Inheritance is twofold:(a) at the compiler and runtime level, it is often difficult to determine which method is being referred to, as M.I. can lead to very convoluted (and sometimes conflicting) namespaces(b) there is no specific superclass, which can lead to problems with determining relationships between classesUsing a S.I. model with interfaces avoids these two problems.
How multiple inheritance is done in java?
Java doesn't have multiple inheritance proper. It is possible for a class to implement different interfaces - however, in this case, only the method names are "inherited", not their contents. It is also possible to use composition instead of inheritance: an object can contain objects of different classes, and use the methods of the objects it contains - but this, too, is a different mechanism than inheritance.
Why java do not support multiple inheritance?
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. If you are curious asking me why doesn't java allow multiple inheritance, 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.
