JAVA make Class non Inheritable

final : key word is use for make class as Final with only one reason no other class can inherit Final Class Eg:
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package com.mastermoin.ICore;

public final class FinalClass {

       public void methodFromFinalClass(){

      

       }

}

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package com.mastermoin.java;

import com.mastermoin.ICore.FinalClass;

public class DemoRun extends FinalClass{

       public static void main(String[] args) {

       }

}

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Output 

Compile Time Error : The type DemoRun cannot subclass the final class FinalClass