Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 1AW
Assume there is a class named Customer. Write a statement that creates an ArrayList that can hold only Customer objects.
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This program is going to maintain a list of customers’ names and bank account balances.
Create a class called CustomerList with a main method that instantiates an ArrayList of String objects called customerName. Invoke the add method to add the following names into the ArrayList:
Cathy
Ben
Jorge
Wanda
Freddie
2. Print each name in the ArrayList using a for loop.
3. Create another ArrayList object called customerBalance, to save users’ balance. What is the type of this ArrayList? double or Double? You just need to declare this ArrayList and leave it empty for now.
4. For each customer, print the name and ask the user to enter the initial balance for this customer. Save the initial balance into ArrayList customerBalance. Use a loop to get this done for all 5 customers.
For example, the program should print out this for the first customer:
Please enter the account balance for Cathy:
(waiting for user’s input …)
Code skeleton:
for(int i=0; i<5;i++)
{
Print(“Please enter…
10.5 LAB: Count probations (EO)
Students are put on probation if their GPA is below 2.0. Complete the Course class by implementing the countProbation() method, which returns the number of students with a GPA below 2.0.
Given classes:
Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here)
Class Student represents a classroom student, which has three fields: first name, last name, and GPA.
Hint: Refer to the Student class to explore the available methods that can be used for implementing the countProbation() method.
Ex: If the following students and their GPA values are added to a course:
Henry Cabot with 3.2 GPABrenda Stern with 1.2 GPALynda Robison with 3.3 GPAJake Flynn with 1.8 GPA
then the countProbation() method returns 2 and the program output is:
Probation count: 2
Course.java
import java.util.ArrayList;
public class Course {
private ArrayList<Student> roster; // Collection of Student…
This program is going to maintain a list of customers’ names and bank account balances.
1. Create a class called CustomerList with a main method that instantiates an ArrayList of String objects called customerName. Invoke the add method to add the following names into the ArrayList:
Cathy
Ben
Jorge
Wanda
Freddie
1. Print each name in the ArrayList using a for a loop.
2. Create another ArrayList object called customerBalance, to save users’ balance. What is the type of this ArrayList? double or Double? You just need to declare this ArrayList and leave it empty for now.
3. For each customer, print the name and ask the user to enter the initial balance for this customer. Save the initial balance into ArrayList customerBalance. Use a loop to get this done for all 5 customers.
The program should print out this for the first customer:
Example:
Please enter the account balance for Cathy:
(waiting for user’s input …)
Code:
for(int i=0; i<5;i++)
{
Print(“Please enter the account balance…
Chapter 17 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 17.1 - Prob. 17.1CPCh. 17.1 - When ArrayList is used as a non-generic class, why...Ch. 17.1 - Suppose we use the following statement to...Ch. 17.1 - Assume we have used the statement shown in...Ch. 17.2 - Prob. 17.5CPCh. 17.2 - Prob. 17.6CPCh. 17.2 - Prob. 17.7CPCh. 17.2 - Prob. 17.8CPCh. 17.3 - Prob. 17.9CPCh. 17.3 - Prob. 17.10CP
Ch. 17.3 - Prob. 17.11CPCh. 17.3 - Prob. 17.12CPCh. 17.3 - Prob. 17.13CPCh. 17.3 - Prob. 17.14CPCh. 17.4 - Prob. 17.15CPCh. 17.5 - Prob. 17.16CPCh. 17.5 - Prob. 17.17CPCh. 17.6 - Prob. 17.18CPCh. 17.6 - Prob. 17.19CPCh. 17.6 - Prob. 17.20CPCh. 17.8 - Prob. 17.21CPCh. 17.8 - Prob. 17.22CPCh. 17.9 - Prob. 17.23CPCh. 17.9 - During the process of erasure, when the compiler...Ch. 17.9 - Prob. 17.25CPCh. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - The process used by the Java compiler to remove...Ch. 17 - True or False: It is better to discover an error...Ch. 17 - Prob. 12TFCh. 17 - True or False: Type parameters must be single...Ch. 17 - Prob. 14TFCh. 17 - Prob. 15TFCh. 17 - True or False: You cannot create an array of...Ch. 17 - Prob. 17TFCh. 17 - Prob. 18TFCh. 17 - Prob. 1FTECh. 17 - Assume the following is a method header in a...Ch. 17 - public class MyClassT { public static void...Ch. 17 - public class PointT extends Number super Integer {...Ch. 17 - Assume there is a class named Customer. Write a...Ch. 17 - Assume names references an object of the...Ch. 17 - Prob. 3AWCh. 17 - Prob. 4AWCh. 17 - Prob. 5AWCh. 17 - Prob. 6AWCh. 17 - Prob. 7AWCh. 17 - Prob. 1SACh. 17 - Look at the following method header: public T...Ch. 17 - Prob. 3SACh. 17 - Do generic types exist at the bytecode level?Ch. 17 - Prob. 5SACh. 17 - When the compiler encounters a class, interface,...Ch. 17 - Prob. 1PCCh. 17 - Prob. 2PCCh. 17 - Prob. 3PCCh. 17 - Prob. 4PCCh. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PC
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