Page 251 - AP Computer Science A, 7th edition

(A) (B) (C) (D) (E)
System.out.println("The lowest temperature is " + minThree(c1, c2, c3));
IIonly IandIIonly IIandIIIonly IandIIIonly I, II, and III
27. A certain interface provided by a Java package contains just a single method:
public interface SomeName {
int method1(Object o); }
A programmer adds some functionality to this interface by adding another abstract method to it, method2:
public interface SomeName {
int method1(Object ob1);
void method2(Object ob2); }
As a result of this addition, which of the following is true?
(A) (B)
(C)
A ClassCastException will occur if ob1 and ob2 are not compatible.
All classes that implement the original SomeName interface will need to be rewritten because they no longer implement SomeName.
A class that implements the original SomeName interface will need to modify its declaration as follows:
public class ClassName implements SomeName