问题:
Which statements, when inserted at the indicated position in the following code, will cause a runtime exception when attempting to run the program?()
class A {}
class B extends A {}
class C extends A {}
public class Q3ae4 {
public static void main(String args[]) {
A x = new A();
B y = new B();
C z = new C();
// insert statement here
}
}
A . x = y;
B . z = x;
C . y = (B) x;
D . z = (C) y;
E . y = (A) y;
Which statements, when inserted at the indicated position in the following code, will cause a runtime exception when attempting to run the program?()
class A {}
class B extends A {}
class C extends A {}
public class Q3ae4 {
public static void main(String args[]) {
A x = new A();
B y = new B();
C z = new C();
// insert statement here
}
}
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