Q 1: Access class members from the same packageNote: ClassA and ClassB in this question are in the same package.public class ClassB {public int x = 1;int y = 2;private int z =3;}ملاحظة: عرف کل کلاس في ملف لانه لا يجوز ان يكون کلاسين public في نفس الملف.public class ClassA {public static void main(String[0 args){ClassB cb = new ClassB();// System.out.print(cb.x); /* 1 */// System.out.print(cb.y); /* 2 */// System.out.print(cb.z); /* 3 */}}1.2- Try to do the following:• Declare a character type variable myChar in the class ClassB, thevariable myChar shouldn't be accessible through the object cb.• Add a statement to the classA to test whether myChar is accessible.

In order to create a variable that is not accessible outside class we must declare it as private. If…

Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } ملاحظة: عرف كل كلاس في ملف لانه لا يجوز ان يكون کلاسين public في نفس الملف. 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 */ } } ont 1.2- Try to do the following: • Declare a character type variable myChar in the class ClassB, the variable myChar shouldn't be accessible through the object cb. • Add a statement to the classA to test whether myChar is accessible.

Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } ملاحظة: عرف كل كلاس في ملف لانه لا يجوز ان يكون کلاسين public في نفس الملف. 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 */ } } ont 1.2- Try to do the following: • Declare a character type variable myChar in the class ClassB, the variable myChar shouldn't be accessible through the object cb. • Add a statement to the classA to test whether myChar is accessible.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 6PE

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Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } ملاحظة: عرف کل کلاس في ملف لانه لا يجوز ان يكون کلاسين public في نفس الملف. public class ClassA { public static void main(String[0 args){ ClassB cb = new ClassB(); // System.out.print(cb.x); /* 1 */ // System.out.print(cb.y); /* 2 */ // System.out.print(cb.z); /* 3 */ } } 1.1- 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. 1.2- Try to do the following: • Declare variable myChar shouldn't be accessible through the object cb. • Add a statement to the classA to test whether myChar is accessible. character type variable myChar in the class ClassB, the
Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } ملاحظة: عرف كل كلاس في ملف لانه لا يجوز ان يكون كلاسين public في نفس الملف. 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 */ } } 1.1- Which statement(s) are true? Choose all that apply. If statement 1 is uncommented, the code prints "1" to the output. If statement 2 is uncommented, the code prints "2" to the output. If statement 3 is uncommented, the code prints "3" to the output. This code does not compile. 1.2- Try to do the following: Declare a character type variable myChar in the class ClassB, the variable myChar shouldn't be accessible through the object cb. Add a statement to the classA to test whether myChar is…
Q:-Write a statement in ClassA to check out the accessibility of your variable. 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 */ } }
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Q 1: Access class members from the same package Note: ClassA and ClassB in this question are in the same package. public class ClassB { public int x = 1; int y = 2; private int z =3; } 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 */ } } 1.1- 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 1.2- Try to do the following: • Declare a character type variable myChar in the class ClassB, the variable myChar shouldn't be accessible through the object cb. Add a statement to the classA to test whether myChar is accessible.
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Modify the Student class presented above as follows. Each student object should contain the scores for three (3) tests. (1) Provide a constructor that sets all instance values based on parameter values. (2) ✓ Overload the constructor such that each test score is assumed to be initially zero. (5) Provide a method called setTestScore that accepts two (2) parameters: the test number (1 through 3) and the score. Also provide a method called getTestScore that accepts the test number and returns the appropriate score. (6) Provide a method called average that computes and returns the average test score for the student. (3) Modify the display method such that the test scores and average are included in the description of the students. (5) Implement the class to exercise the methods of Student. (8) NOTE WELL ✓ Ensure that your programs are documented (comments) as needed ✓ Make certain that your programs are debugged and working before submitting
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