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How do you invoke an overwritten super class from the sub class?
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∙ 13y ago
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Wiki User
∙ 13y ago
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How do you invoke an overwritten super class method from the sub class?
super.methodHere();
How do explicitly invoke overridden superclass method from a subclass?
Use the super keyword. Example: public class Super { public void methodToOverride() { } } public class Sub { @Override public void methodToOverride() { super.methodToOverride(); } }
Is inheritence in java only based on super class and sub class?
Yes. Inheritance is achieved by using the super class and sub class concept
Is it possible to have a method in the super class and sub class with same name but different signature?
Yes, it is perfectly possible. If two methods have a different signature, they can exist together irrespective of where they are present, either in the same class or in a super class, sub class situation. If two methods have the same signature and one exists in the super class and one in the sub class it is called method overriding.
Can a super class varialble can reference a subclass object in java?
No. Because, what is the guarantee that when the super class code is being executed there will always be a sub class? But, the other way round - sub class object accessing a super class variable is possible because, if a sub class uses inheritance to extend from another class, then it is 100% sure that the parent class is going to be around. So a sub class can access the super class variable.
What portions of a super class can be used by subclass?
Any members of a superclass which are declared as public or protected can be used by all subclasses.
What is Categorization in database management system?
modeling of a single sub class with a relationship that involve more than one super class each called categorization.
What is the kingdom phylum class order family genus species of the corn?
Popular Name: Corn (Maize) Class: Liliopsida Super Kingdom: Eukaryota Super Order: Kingdom: Viridiplantae Order: Poales Phylum: Streptophyta Family: Pocaceae Sub Phylum: Embryophyta Sub Family: Panicoideae Division: Tracheophyta Tribe: Andropogoneae Subdivision: Spermatophyta Genus: Zea Super Class: Magnoliophyta Species: mays
What is the kingdom phylum class order family genus and species of corn?
Popular Name: Corn (Maize) Class: Liliopsida Super Kingdom: Eukaryota Super Order: Kingdom: Viridiplantae Order: Poales Phylum: Streptophyta Family: Pocaceae Sub Phylum: Embryophyta Sub Family: Panicoideae Division: Tracheophyta Tribe: Andropogoneae Subdivision: Spermatophyta Genus: Zea Super Class: Magnoliophyta Species: mays
How super class variable can be used to refer the sub class object?
The super variable is not a reference to a subclass. It is a reference to the superclass. class MyClass { void printType() { System.out.println("This is a MyClass"); } // MySubClass is a subclass of MyClass. Within this class, the super keyword // refers to MyClass. static class MySubClass extends MyClass { void printType() { // Tell Java we also want to call the printType method of the super class super.printType(); System.out.println("This is a MySubClass"); } } }
What is an antonym for the prefix sub?
The antonym for the prefix "sub" is "super", which means above, over, or beyond.
In java why method defined in super class need not to defined in subclass?
In Java, or in any object oriented language such as C++, a method defined in super (parent) class does not need to be defined in a subclass, because that is the primary purpose of inheritance. Object oriented programming allows you to define and declare a class that implements the behavior for an object. Inheritance allows you to refine, or subclass, that class by "reusing" all of the functionality of the parent class into the sub class, adding additional definition and declaration for the sub class. If the subclass needs to change a parent class method, it can overload that method. This is called abstraction.
