4.2. Consider the following code. class A { void m (A x) {System.out.println("AA"); void m(B x) {System.out.println("AB"); void m(C x){ System.out.println("AC"); } } } } class B extends A { void m (A x) {System.out.println("BA"); void m(B x) { System.out.println("BB"); void m(C x) (System.out.println("BC"); } } } } class C extends B { void m(A x) { System.out.println("CA"); } void m(B x){ System.out.println("CB"); } void m(C x) {System.out.println("CC"); } } A a1 = new A(); A a2 = new B(); A a3 = new C(); B b1 = new B(); B b2 = new C(); C c1 = new C(); Fill in each box with the output of the corresponding method invocation. For example: - fill in the 4th row and 2nd column with the output of bl.m(a2). - fill in the 2nd row and 4th column with the output of a2.m(b1) Hint: this problem goes fast once you see the pattern. al a2 a3 bl al a2 a3 bl b2 cl

4.2. Consider the following code. class A { void m (A x) {System.out.println("AA"); void m(B x) {System.out.println("AB"); void m(C x){ System.out.println("AC"); } } } } class B extends A { void m (A x) {System.out.println("BA"); void m(B x) { System.out.println("BB"); void m(C x) (System.out.println("BC"); } } } } class C extends B { void m(A x) { System.out.println("CA"); } void m(B x){ System.out.println("CB"); } void m(C x) {System.out.println("CC"); } } A a1 = new A(); A a2 = new B(); A a3 = new C(); B b1 = new B(); B b2 = new C(); C c1 = new C(); Fill in each box with the output of the corresponding method invocation. For example: - fill in the 4th row and 2nd column with the output of bl.m(a2). - fill in the 2nd row and 4th column with the output of a2.m(b1) Hint: this problem goes fast once you see the pattern. al a2 a3 bl al a2 a3 bl b2 cl

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

4.2. Consider the following code.
class A {
void m (A x) { System.out.println("AA"); }
void m(B x) {System.out.println("AB"); }
void m(C x) { System.out.println("AC"); }
}
class B extends A {
}
void m (A x) { System.out.println("BA");
void m (B x) {System.out.println("BB");
void m(C x){ System.out.println("BC"); }
}
}
class C extends B {
void m (A x) {System.out.println("CA"); }
void m(B x) {System.out.println("CB"); }
void m(C x) { System.out.println("CC"); }
}
A a1 = new A();
A a2 = new B();
A a3 = new C();
B b1 = new B();
B b2=new C();
C c1 = new C();
Fill in each box with the output of the corresponding method invocation.
For example:
- fill in the 4th row and 2nd column with the output of b1.m(a2).
- fill in the 2nd row and 4th column with the output of a2.m(b1)
Hint: this problem goes fast once you see the pattern.
al
a2
a3
bl
b2
cl
al
a2
a3
b1
b2
cl

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