4. public abstract class Test2 { private int x private int y; public abstract void display(); public void print(int x, int y) { this.x=x; this.y=y; } } Which two classes use Test2 class correctly? a. public class Circle implements Test2{ private int radius; } b. public abstract class Circle extends Test2 { private int radius; } c. public class Circle extends Test2{ private int radius; public void print(); } d. public class Circle extends Test2 { private int radius; public void print(){ insert code here } } e. public abstract class Circle implements Test2 { private int radius;

4. public abstract class Test2 { private int x private int y; public abstract void display(); public void print(int x, int y) { this.x=x; this.y=y; } } Which two classes use Test2 class correctly? a. public class Circle implements Test2{ private int radius; } b. public abstract class Circle extends Test2 { private int radius; } c. public class Circle extends Test2{ private int radius; public void print(); } d. public class Circle extends Test2 { private int radius; public void print(){ insert code here } } e. public abstract class Circle implements Test2 { private int radius;

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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