
Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137502783
Author: Tony Gaddis
Publisher: PEARSON+
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Expert Solution & Answer
Chapter 4.7, Problem 4.25CP
Explanation of Solution
TryParse Method:
The TryParse method helps to avoid the exception when the user enters invalid inputs.
- This method helps to identify a string value which can be converted to specific data type before it is converted to that data type.
- There are so many TryParse methods in .NET. Some of the methods are given below:
- int.TryParse method is used to convert the string into integer data type.
- double.TryParse method is used to convert the string into double data type.
- decimal.TryParse method is used to convert the string into decimal data type.
- The general format for TryParse method is given below:
datatype.TryParse(string, out targetVariable)
Where,
- “datatype” indicates the data type such as “int”, “double”, and “decimal”.
- “string” indicates the string which need to convert.
- “targetVariable” indicates the name of data type variable...
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Students have asked these similar questions
In a shopping cart, there are various items, which can either belong to the category of household items or electronic items. The following UML diagram illustrates the relationship between items, household items, and electronic items.
//Implementation Class
public class ShoppingCart{
public static void main(String[] args){
final int MAX_ITEM = 50;
Item cart = new Item[MAX_ITEM];
addItem(cart); // populate the item array
printItem(cart);
}
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Considering that all the data definition classes and the implementation class are complete, which of the following Object-Oriented Programming (OOP) concepts do you need to use in the above context?
i) Polymorphism
ii) Method Overloading
iii) Method Overriding
iv) Dynamic Binding
v) Abstract Class
Explain, using course terminology, how you would use any of the above concepts to model the given scenario.
Answer this JAVA OOP question below:
An Employee has a name, employee ID, and department. An Employee object must be created with all its attributes. The UML diagram is provided below:
- name: String - employeeId: String - department: String
+ Employee(name: String, employeeId: String, department: String) + setName(name: String): void + setEmployeeId(employeeId: String): void + setDepartment(department: String): void + getName(): String + getEmployeeId(): String + getDepartment(): String + toString(): String
A faculty is an Employee with an additional field String field: rank
public class TestImplementation{
public static void main(String[] args){
Employee[] allEmployee = new Employee[100];
// create an employee object with name Tom Evan, employee ID 001 and department IST and store it in allEmployee
// create a faculty object with name Adam Scott, employee ID 002, department IST and rank Professor and store it in allEmployee } }
Please answer this JAVA OOP question that is given below:
An Employee has a name, employee ID, and department. An Employee object must be created with all its attributes. The UML diagram is provided below:
- name: String - employeeId: String - department: String
+ Employee(name: String, employeeId: String, department: String) + setName(name: String): void + setEmployeeId(employeeId: String): void + setDepartment(department: String): void + getName(): String + getEmployeeId(): String + getDepartment(): String + toString(): String
A faculty is an Employee with an additional field String field: rank
Assuming the Employee class is fully implemented, define a Professor class in Java with the following:
A toString() method that includes both the inherited attributes and the specialization
Chapter 4 Solutions
Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
Ch. 4.1 - What is a control structure?Ch. 4.1 - What is a decision structure?Ch. 4.1 - Prob. 4.3CPCh. 4.1 - Prob. 4.4CPCh. 4.1 - What types of relationships between numeric values...Ch. 4.1 - Write an if statement that determines whether the...Ch. 4.1 - Write an if statement that determines whether the...Ch. 4.2 - Prob. 4.8CPCh. 4.2 - In an if-else statement, under what circumstances...Ch. 4.2 - Write an if-else statement that works like this:...
Ch. 4.3 - Convert the following set of nested if-else...Ch. 4.4 - Prob. 4.12CPCh. 4.4 - Prob. 4.13CPCh. 4.4 - Assume the variables a = 2, b = 4, and c = 6....Ch. 4.4 - Explain how short-circuit evaluation works with...Ch. 4.4 - Write an if statement that displays the message...Ch. 4.4 - Write an if statement that displays the message...Ch. 4.5 - Prob. 4.18CPCh. 4.5 - Prob. 4.19CPCh. 4.6 - If the following code were part of a complete...Ch. 4.6 - If the following code were part of a complete...Ch. 4.7 - Prob. 4.22CPCh. 4.7 - If a TryParse method successfully converts the...Ch. 4.7 - Prob. 4.24CPCh. 4.7 - Prob. 4.25CPCh. 4.9 - Prob. 4.26CPCh. 4.9 - If several CheckBox controls have been created in...Ch. 4.9 - Prob. 4.28CPCh. 4.10 - Convert the following if-else-if code to a switch...Ch. 4.11 - Prob. 4.30CPCh. 4.11 - Prob. 4.31CPCh. 4.11 - Prob. 4.32CPCh. 4 - A __________ structure executes a set of...Ch. 4 - A __________ structure provides one alternative...Ch. 4 - A(n) __________ expression has a value of either...Ch. 4 - The symbols , , and == are all __________...Ch. 4 - A __________ structure tests a condition and then...Ch. 4 - You use a(n) __________ statement to write a...Ch. 4 - You use a(n) __________ statement to write a dual...Ch. 4 - A ____________ decision structure is written...Ch. 4 - , ||, and ! are __________ operators. a....Ch. 4 - A compound Boolean expression created with the...Ch. 4 - A compound Boolean expression created with the...Ch. 4 - The __________ operator takes a Boolean expression...Ch. 4 - A __________ is a Boolean variable that signals...Ch. 4 - Prob. 14MCCh. 4 - Prob. 15MCCh. 4 - Prob. 16MCCh. 4 - The __________ section of a switch statement is...Ch. 4 - A ListBoxs index numbering starts at __________....Ch. 4 - You can use the __________ property to determine...Ch. 4 - The __________ property holds the item that is...Ch. 4 - Prob. 1TFCh. 4 - A single-alternative decision structure tests a...Ch. 4 - The if-else statement is a dual-alternative...Ch. 4 - A decision structure can be nested inside another...Ch. 4 - A compound Boolean expression created with the ...Ch. 4 - Prob. 6TFCh. 4 - Multiple CheckBox controls in the same GroupBox...Ch. 4 - The test expression in a switch statement can be a...Ch. 4 - If an item is not selected in a ListBox, the...Ch. 4 - Prob. 10TFCh. 4 - What is meant by the term conditionally executed?Ch. 4 - You need to test a condition and then execute one...Ch. 4 - Briefly describe how the operator works.Ch. 4 - Briefly describe how the || operator works.Ch. 4 - Prob. 5SACh. 4 - What is a flag and how does it work?Ch. 4 - What are the two arguments that you pass to a...Ch. 4 - How do you determine in code whether a RadioButton...Ch. 4 - Prob. 9SACh. 4 - Prob. 10SACh. 4 - Write an if statement that assigns 20 to the...Ch. 4 - Write an if statement that assigns 0 to the...Ch. 4 - Write an if-else statement that assigns 0 to the...Ch. 4 - Write nested decision structures that perform the...Ch. 4 - Write an if-else statement that displays Speed is...Ch. 4 - Write an if-else statement that determines whether...Ch. 4 - Prob. 7AWCh. 4 - Rewrite the following if-else-if statement as a...Ch. 4 - Prob. 9AWCh. 4 - Roman Numeral Converter Create an application that...Ch. 4 - Mass and Weight Scientists measure an objects mass...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Prob. 5PPCh. 4 - Book Club Points Serendipity Booksellers has a...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Body Mass Index Program Enhancement In Programming...Ch. 4 - Change for a Dollar Game Create a change-counting...Ch. 4 - Fat Percentage Calculator One gram of fat has 9...Ch. 4 - Time Calculator Create an application that lets...Ch. 4 - Workshop Selector The following table shows a...
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