Direct Multiple Inheritance in Object Oriented terms is the feature where one class extends/inherits the features of multiple classes.
ex: Assuming there is a class A which has method a() and class B which has method b() - Now if we need a class C that needs the features of both A and B it could be like:
public class C extends A, B {
...
}
This way it can use both the methods a() and b().
Unfortunately Java does not support direct multiple inheritance. You can achieve partial multiple inheritance using interfaces.
Java does not support multiple inheritance
Single Inheritance Multiple Inheritance Multilevel Inheritance
Types of dominance, multiple alleles, sex linked inheritance, polygenic inheritance and maternal inheritance.
A multiple allele trait in biology refers to a gene that has more than two possible alleles, or versions. This can result in a wider range of phenotypes, or physical characteristics, in individuals. In genetic inheritance, multiple allele traits can lead to more complex patterns of inheritance, as the presence of different alleles can interact in various ways to determine an individual's traits.
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 allow the multiple inheritance of concrete classes, though it does allow a "hybrid" inheritance of one concrete class and multiple interfaces.
Java does not support direct multiple inheritance. You can implement partial multiple inheritance using interfaces. ex: public class ExMultInherit implements interface1, interface2, interface 3 { ... .... ...... }
There are no drawbacks to multiple inheritance if multiple inheritance is precisely what is required to achieve your goal. If there are any drawbacks then it is only because of poor design, not multiple inheritance itself. For instance, when designing classes to simulate vehicles, an amphibious vehicle would inherit the properties of both an off-road vehicle and a marine vehicle, therefore multiple inheritance would be an appropriate usage.
Partnership in inheritance; joint heirship; joint right of succession to an inheritance.
C is not object-oriented -- you can't even use single inheritance let alone multiple inheritance.
Java does not support direct multiple Inheritance. Harder to implement, not every language support it: C++ does, Java does not.
codominance and multiple alleles