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extends comparison table
Subject have purpose is an instance of is a kind of is a subtopic of have example has definition
keyword   syntactic unit  A word that has special meaning in Java
extendsto create a subclasskeyword Classes
//Create a subclass
public class MortgageAccount extends Account
{
// body of the class
}
A keyword that indicates a class is a subclass of another class or an interface is a subinterface of another interface

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