Q2: Different packages and access modifiers Note: ClassA and ClassB in this question are in two different packages, while in the previous question, they were in the same package. package package_02; public class ClassB { public int x = 1; int y = 2; private int z =3; } package package_01; import package_02.ClassB; public class ClassA { public static void main(String[] args) { ClassB cb = new ClassB(); !! System.out.print(cb.x); /* 1 */ // System.out.print(cb.y); /* 2 */ // System.out.print(cb.z); /* 3 */ } } 2.1- Which statement(s) are true? Choose all that apply. a. If statement 1 is uncommented, the code prints "1" to the output. b. If statement 2 is uncommented, the code prints "2" to the output. c. If statement 3 is uncommented, the code prints "3" to the output. d. This code does not compile. 2.2- Try to do the following: • Declare an integer variable called mylnt in the ClassB; the variable mylnt should be accessible through the object cb. • Write a statement in ClassA to check out the accessibility of your variable.

Q2: Different packages and access modifiers Note: ClassA and ClassB in this question are in two different packages, while in the previous question, they were in the same package. package package_02; public class ClassB { public int x = 1; int y = 2; private int z =3; } package package_01; import package_02.ClassB; public class ClassA { public static void main(String[] args) { ClassB cb = new ClassB(); !! System.out.print(cb.x); /* 1 / // System.out.print(cb.y); / 2 / // System.out.print(cb.z); / 3 */ } } 2.1- Which statement(s) are true? Choose all that apply. a. If statement 1 is uncommented, the code prints "1" to the output. b. If statement 2 is uncommented, the code prints "2" to the output. c. If statement 3 is uncommented, the code prints "3" to the output. d. This code does not compile. 2.2- Try to do the following: • Declare an integer variable called mylnt in the ClassB; the variable mylnt should be accessible through the object cb. • Write a statement in ClassA to check out the accessibility of your variable.

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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