Analyze the following code: public class Test{ public static void main(String[] args) { B b = new B(); b.m(5): } } class A { int i; } } public void m(int i) { this.i = i; System.out.println("i is " + b.i); class B extends A { public void m(String s) { } } The program has a compile error, because m is overridden with a different signature in B. The program has a compile error, because b.m(5) cannot be invoked since th method m(int) is hidden in B. The program has a runtime error on b.i, because i is not accessible from b. The method m is not overridden in B. B inherits the method m from A and defines an overloaded method m in B.

Analyze the following code: public class Test{ public static void main(String[] args) { B b = new B(); b.m(5): } } class A { int i; } } public void m(int i) { this.i = i; System.out.println("i is " + b.i); class B extends A { public void m(String s) { } } The program has a compile error, because m is overridden with a different signature in B. The program has a compile error, because b.m(5) cannot be invoked since th method m(int) is hidden in B. The program has a runtime error on b.i, because i is not accessible from b. The method m is not overridden in B. B inherits the method m from A and defines an overloaded method m in B.

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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