Overriding means to provide a new implementation for a method in the subclass.
Note the following:
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Overridden methods are in different classes related by inheritance; overloaded methods can be either in the same class or different classes related by inheritance.
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Overridden methods have the same signature and return type; overloaded methods have the same name but a different parameter list.
To avoid mistakes, you can use a special Java syntax, called override annotation , to place
@Override
before the method in the subclass. For example:
This annotation denotes that the annotated method is required to override a method in the superclass. If a method with this annotation does not override its superclass’s method, the compiler will report an error. For example, if toString is mistyped as tostring , a compile error is reported. If the override.
Questions
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Explain the difference between method overloading and method overriding.
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If a method in a subclass has the same signature as a method in its superclass with the same return type, is the method overridden or overloaded?
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If a method in a subclass has the same signature as a method in its superclass with a different return type, will this be a problem?
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If a method in a subclass has the same name as a method in its superclass with different parameter types, is the method overridden or overloaded?
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What is the benefit of using the @Override annotation?