Please solve the java code error.

interface A {
    void a();
}

public class B implements A{
    public void a(){
        System.out.println ("Output");
    }
    public void b(){
        System.out.println ("Output");
    }
}
public class Hd{
    public static void main(String []args){
        A test = new B();
        test.a();
        B test1 =B(A)
        test.b();
    }
  }

java

2022-09-22 18:36

1 Answers

in class hd call voida() in class B of interface A And if class B's void b() call is correct, If you are going to do it in the same java file, you should erase the public in front of class B Now, below I think B test1 = B(A) semicolon is missing? I can't take out the semicolon, so I changed the coding interface A { void a(); }

class B implements A{

 public void a(){
        System.out.println ("Output a()call");
    }
    public void b(){
        System.out.println ("Output b()call");
    }

}

public class Hd{ public static void main(String []args){ A test = new B(); test.a(); System.out.println ("Let's move on"); B test1 =new B(); test1.b();

}

It's working like this

2022-09-22 18:36

If you have any answers or tips

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