Given the class definitions: ```java class Shape { } class Square extends Shape { } ``` Given the variable declarations: ```java Shape shape1 = null; Square square1 = null; ``` Which four compile?

A. shape1 = (Square) new Square();

C. square1 = (Square) new Shape();

Oracle

1Z0-808 · Question #95

1Z0-808 Question #95: Real Exam Question with Answer & Explanation

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Working with Inheritance

Question

Given the class definitions:

class Shape { }
class Square extends Shape { }

Given the variable declarations:

Shape shape1 = null;
Square square1 = null;

Which four compile?

Options

Ashape1 = (Square) new Square();
Bshape1 = new Square();
Csquare1 = (Square) new Shape();
Dsquare1 = new Shape();
Esquare1 = new Square();
Fshape1 = square1;
Gshape1 = new Shape();
Hsquare1 = shape1;

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Topics

#type casting#inheritance#upcasting#downcasting

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