Note: ClassA and ClassB in this question are in twodifferent packages, while in the previous question, theywere 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 thatapply.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.Thisode does not compile.2.2- Try to do the following:Declare an integer variable called myInt in theClassB; the variable myInt should be accessiblethrough the object cb.Write a statement in ClassA to check out theaccessibility of your variable.

2.1). , the output will be "1" As the other variables y and z will not be visible in the class A as…

Answered: different packages, while in the…

different packages, while in the previous were in the same package. package package_02; public class ClassB { public int x = 1; int y = 2; private int z =3; }

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

See similar textbooks

Similar questions

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 */ } }
For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)
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…
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 myInt should be accessible through the object cb. • Write a statement in ClassA to check out the accessibility of your…
Take a look at the class declaration below: package p1; class Test8{ package p2; import p1.Test8; package p3; import p1.Test8; import p2.Test9; int i; class Test9 extends Test8 { private int j; protected int k; public int I; } class TestDemo3{ public static void main(String args[]){ Test8 t8 = new Test8(); Test9 t9 = new Test9(); } Out of these 4 variables declared in Test8, which are accessible in Test9 directly and by creating Test8 reference? In TestDemo3 main function, which variables can be used by each of the references t8 and t9?
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 أن يكون كاسين public في نقس 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. 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.
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.
JAVA Language Caesar Shift Question: Modify the Caesar class so that it will allow various sized shifts to be used, instead of just a shift of size 3. (Hint: Use an instance variable in the Caesar class to represent the shift, add a constructor to set it, and change the encode method to use it.) import java.util.*; public class TestCipher { public static void main(String[] args) { int shift = 7; Caesar caesar = new Caesar(); String text = "hello world"; String encryptTxt = caesar.encrypt(text); System.out.println(text + " encrypted with shift " + shift + " is " + encryptTxt); } } abstract class Cipher { public String encrypt(String s) { StringBuffer result = new StringBuffer(""); // Use a StringBuffer StringTokenizer words = new StringTokenizer(s); // Break s into its words while (words.hasMoreTokens()) { // For each word in s…
toString() and equals() Methods This lab will demonstrate how the toString() and equals() methods work when they are not overridden. Type up the code and submit the BOTH results. CODE public class ObjectToString( public static void main(String[] args) { ClassOne co new ClassOne(); ClassTwo ct = new ClassTwo(); } } public class Classone { System.out.println(co); System.out.println(ct); System.out.println(co.equals(ct)); public void printfle() { System.out.println("I am from ClassOne"); } public class ClassTwo ( public void printMe() { } System.out.println("I am from ClassTwo"); Run the program and notice the output.
class implementation file -- Rectangle.cpp class Rectangle { #include #include "Rectangle.h" using namespace std; private: double width; double length; public: void setWidth (double); void setLength (double) ; double getWidth() const; double getLength() const; double getArea () const; } ; // set the width of the rectangle void Rectangle::setWidth (double w) { width = w; } // set the length of the rectangle void Rectangle::setLength (double l) { length l; //get the width of the rectangle double Rectangle::getWidth() const { return width; // more member functions here
package wednesdayClass; class Wuntumi{ private double salary; private String name; private float pension; } public class Sowh3 extends Wuntumi { public static void main(String footbal[]) { Wuntumi sobolo = new Wuntumi(); } } d. Explain why the code was incorrect.
package myq2; class Sale { int sellerID, milksale, buttersale; Sale(int sid, int ms, int bs) { sellerID = sid; milksale- ms; buttersale - bs; } elling dairy ifferent days using OOP ers, based on YQ2 int totalsaving(){ return milksale + buttersale; } } ale public class Myq2 { public static void main(String[] args) { Sale s = new Sale(111, 10, 20); System.out.println("Seller ID" + s.sellerID ); System.out.println("Total Saving "+s.totalsaving()); } } 4) Use the parameterized constructor to initialize the member variables of the class. 5) Display the following details of seller using object of Sale class. seller ID, totalsaving Solution to program