When overriding the equals method, a common mistake is mistyping its signature in the subc...

When overriding the equals method, a common mistake is mistyping its signature in the subclass. For example, the equals method is incorrectly written as equals(Circle circle), as shown in (a) in following the code; instead, it should be equals(Object circle), as shown in (b). Show the output of running class Test with the Circle class in (a) and in (b), respectively.

public class Test {
public static void main(String[] args) {
Object circle1 = new Circle();
Object circle2 = new Circle();
System.out.println(circle1.equals(circle2));
}
}

(a)
class Circle {
double radius;
public boolean equals(Circle circle) {
return this.radius == circle.radius;
}
}

(b)
class Circle {
double radius;
public boolean equals(Object circle) {
return this.radius ==
((Circle)circle).radius;
}
}

If Object is replaced by Circle in the Test class, what would be the output to run Test using the Circle class in (a) and (b), respectively?