Inheritance
It’s a mechanism where the child class acquires the properties of the parent class or supper class.
java supports inheritance there are many types of in heritance
- single inheritance ( above example )
- multilevel inheritance
- hierarchical inheritance
Example for multilevel inheritance
class Parent
{
}
class Boy extends Parent
{
}
class Girl extends Boy
{
}
In the above example the Boy class can acquire the properties of Parent class, mean while has Girl class extends Boy class, so a Girl class can acquire the properties of both the Parent class and the Boy class.
Example for hierarchical inheritance
Note : Java does not support the multiple inheritance where has it only supports multilevel inheritance.
If class A and class B have same methods than the class C will be in confusion to take the method from which class so this concept was ruled out in java.
If you create the Object of class C than the constructor is called, hear that constructor will execute the super statement, here again there is a confusion which is parent class and whose constructor is need to be called
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