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Introduction To Java

JAVA was developed by James Gosling at Sun Microsystems Inc in the year 1991, later acquired by Oracle Corporation. It is a simple programming language. Java makes writing, compiling, and debugging programming easy. It helps to create reusable code and modular programs.

Java is a class-based, object-oriented programming language and is designed to have as few implementation dependencies as possible. A general-purpose programming language made for developers to write once run anywhere that is compiled Java code can run on all platforms that support Java. Java applications are compiled to byte code that can run on any Java Virtual Machine. The syntax of Java is similar to c/c++.

Link for the Problem – Java Method Overriding – Hacker Rank Solution

Java Method Overriding – Hacker Rank Solution

Problem :

When a subclass inherits from a superclass, it also inherits its methods; however, it can also override the superclass methods (as well as declare and implement new ones). Consider the following Sports class:

class Sports{
    String getName(){
        return "Generic Sports";
    }
    void getNumberOfTeamMembers(){
        System.out.println( "Each team has n players in " + getName() );
    }
}

Next, we create a Soccer class that inherits from the Sports class. We can override the getName method and return a different, subclass-specific string:

class Soccer extends Sports{
    @Override
    String getName(){
        return "Soccer Class";
    }
}

Note: When overriding a method, you should precede it with the @Override annotation. The parameter(s) and return type of an overridden method must be exactly the same as those of the method inherited from the supertype.

---

Task
Complete the code in your editor by writing an overridden getNumberOfTeamMembers method that prints the same statement as the superclass’ getNumberOfTeamMembers method, except that it replaces  with  (the number of players on a Soccer team).

Output Format

When executed, your completed code should print the following:

Generic Sports
Each team has n players in Generic Sports
Soccer Class
Each team has 11 players in Soccer Class

Java Method Overriding – Hacker Rank Solution

import java.util.*;
class Sports{

    String getName(){
        return "Generic Sports";
    }
  
    void getNumberOfTeamMembers(){
        System.out.println( "Each team has n players in " + getName() );
    }
}

class Soccer extends Sports{
    @Override
    String getName(){
        return "Soccer Class";
    }

    @Override
    void getNumberOfTeamMembers() {
        System.out.println("Each team has 11 players in " + getName());
    }
}

public class Solution{
	
    public static void main(String []args){
        Sports c1 = new Sports();
        Soccer c2 = new Soccer();
        System.out.println(c1.getName());
        c1.getNumberOfTeamMembers();
        System.out.println(c2.getName());
        c2.getNumberOfTeamMembers();
	}
}