SubClass Constructor Question

[Ehsan Rahman]

Hello everyone,

Suppose:

  

package fundamentalstest;

public class FundamentalsTest {
      protected FundamentalsTest(){
        System.out.println("Do I output?");
    }
}

  

and ...

  

package anotherpackage;

import fundamentalstest.*;

public class SubFundamentals extends FundamentalsTest{

    //FundamentalsTest f1 = new FundamentalsTest();

    public static void main(String[] args) {
        System.out.println("Outputting from SubFundamentals");
        new SubFundamentals();
    }

}

Why is it that the "new FundamentalsTest();" statement in line 9 is not valid but the constructor chaining call by SubFundamentals to the FundamentalsTest() constructor is valid?

Many Thanks,
Ehsan

[Tom Johnson]

The class named FundamentalsTest is not in the same package as SubFundamentals. The constructor of FundamentalsTest is protected, hence you cannot call it directly from a different package.