Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 9, Problem 2FTE
Explanation of Solution
Given statement:
//Store the name in the StringBuilder object
StringBuilder name = "Joe Schmoe";
Error in the given statement:
“StringBuilder” class:
- The class “StringBuilder” is similar to the class “String” except the way the changes are made to the objects of the “StringBuilder”.
- The contents of the “StringBuilder” object can be changed whereas the contents of the “String” object cannot be changed...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
State true or false:
A regular expression enables a quick test to determine objects and text strings with undependable values.
If you write this method for a class, Java will automatically call it any time you concatenate an object of the class with a string.a. toStringb. plusStringc. stringConvertd. concatString
Alternate Character DisplayWrite a method that accepts a String object as an argument and then returns the alternate characters as substring starting from index 0. For instance, if the string argument passed is “GREAT”, the method should return “GET”. Demonstrate the method in a program that asks the user to input a string and then passes it to the method.
Chapter 9 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Ch. 9.2 - Prob. 9.1CPCh. 9.2 - Write an if statement that displays the word digit...Ch. 9.2 - Prob. 9.3CPCh. 9.2 - Write a loop that asks the user, Do you want to...Ch. 9.2 - Prob. 9.5CPCh. 9.2 - Write a loop that counts the number of uppercase...Ch. 9.3 - Prob. 9.7CPCh. 9.3 - Modify the method you wrote for Checkpoint 9.7 so...Ch. 9.3 - Look at the following declaration: String cafeName...Ch. 9.3 - Prob. 9.10CP
Ch. 9.3 - Prob. 9.11CPCh. 9.3 - Prob. 9.12CPCh. 9.3 - Prob. 9.13CPCh. 9.3 - Look at the following code: String str1 = To be,...Ch. 9.3 - Prob. 9.15CPCh. 9.3 - Assume that a program has the following...Ch. 9.4 - Prob. 9.17CPCh. 9.4 - Prob. 9.18CPCh. 9.4 - Prob. 9.19CPCh. 9.4 - Prob. 9.20CPCh. 9.4 - Prob. 9.21CPCh. 9.4 - Prob. 9.22CPCh. 9.4 - Prob. 9.23CPCh. 9.4 - Prob. 9.24CPCh. 9.5 - Prob. 9.25CPCh. 9.5 - Prob. 9.26CPCh. 9.5 - Look at the following string:...Ch. 9.5 - Prob. 9.28CPCh. 9.6 - Write a statement that converts the following...Ch. 9.6 - Prob. 9.30CPCh. 9.6 - Prob. 9.31CPCh. 9 - The isDigit, isLetter, and isLetterOrDigit methods...Ch. 9 - Prob. 2MCCh. 9 - The startsWith, endsWith, and regionMatches...Ch. 9 - The indexOf and lastIndexOf methods are members of...Ch. 9 - Prob. 5MCCh. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MCCh. 9 - To delete a specific character in a StringBuilder...Ch. 9 - Prob. 12MCCh. 9 - This String method breaks a string into tokens. a....Ch. 9 - These static final variables are members of the...Ch. 9 - Prob. 15TFCh. 9 - Prob. 16TFCh. 9 - True or False: If toLowerCase methods argument is...Ch. 9 - True or False: The startsWith and endsWith methods...Ch. 9 - True or False: There are two versions of the...Ch. 9 - Prob. 20TFCh. 9 - Prob. 21TFCh. 9 - Prob. 22TFCh. 9 - Prob. 23TFCh. 9 - int number = 99; String str; // Convert number to...Ch. 9 - Prob. 2FTECh. 9 - Prob. 3FTECh. 9 - Prob. 4FTECh. 9 - The following if statement determines whether...Ch. 9 - Write a loop that counts the number of space...Ch. 9 - Prob. 3AWCh. 9 - Prob. 4AWCh. 9 - Prob. 5AWCh. 9 - Modify the method you wrote for Algorithm...Ch. 9 - Prob. 7AWCh. 9 - Look at the following string:...Ch. 9 - Assume that d is a double variable. Write an if...Ch. 9 - Write code that displays the contents of the int...Ch. 9 - Prob. 1SACh. 9 - Prob. 2SACh. 9 - Prob. 3SACh. 9 - How can you determine the minimum and maximum...Ch. 9 - Prob. 1PCCh. 9 - Prob. 2PCCh. 9 - Prob. 3PCCh. 9 - Prob. 4PCCh. 9 - Prob. 5PCCh. 9 - Prob. 6PCCh. 9 - Check Writer Write a program that displays a...Ch. 9 - Prob. 8PCCh. 9 - Prob. 9PCCh. 9 - Word Counter Write a program that asks the user...Ch. 9 - Sales Analysis The file SalesData.txt, in this...Ch. 9 - Prob. 12PCCh. 9 - Alphabetic Telephone Number Translator Many...Ch. 9 - Word Separator Write a program that accepts as...Ch. 9 - Pig Latin Write a program that reads a sentence as...Ch. 9 - Prob. 16PCCh. 9 - Lottery Statistics To play the PowerBall lottery,...Ch. 9 - Gas Prices In the student sample program files for...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- True or False: The String class’s replace method can replace individual characters, but cannot replace substrings.arrow_forwardTrue or False: Autoboxing is the process of converting a wrapper class object to a primitive type.arrow_forwardStringBuilder objects should be used in place of String objects if O is more than 80 characters long. the string may grow. O the string is declared final. O the tring needs to be initialized.arrow_forward
- In the class String, the substring method inserts a String into another String. -True or -Falsearrow_forwardJAVAA7-Write a class with a constructor that accepts a String object as its argument. The class should have a method that returns the number of vowels in the string, and another method that returns the number of consonants in the string. Demonstrate the class in a program by invoking the methods that return the number of vowels and consonants. Print the counts returned.arrow_forwardname: string - ownerName: String Cat numberOfTeeth int lengthofTail : int + Cat (name: String, ownerName: String, numberOfTeeth: int, lengthofTail:int) i. ii. + Pet (name:String, ownerName: String) + getName(): String + getownerName (): String + getNumberOfTeeth (): int + getLengthofTail(): int Pet iii. Budgie colourOfFeathers: String + Budgie (name: String, 1. Convert the UML class diagram above into a java code with the following conditions The methods in the Pet class are abstract. ownerName: String, colourofFeathers:String) + getColourOfFeathers (): String Create a class called test. The main() method in the test class should create three Cat objects and two Budgie objects. The main() method should also create indirectly an object of the Pet class. Demonstrate polymorphism in your test class. 2. Write a Java Code for a simple GUI program that creates a frame and changes the background to green. Examiner's Name: George Kodjo Anniarrow_forward
- Strictly java code Write an application for Limpopo’s Car Care Shop that shows a user a list of available services: oil change, tire rotation, battery check, or brake inspection. Allow the user to enter a string that corresponds to one of the options, and display the option and its price as R250, R220, R150, or R50, accordingly. Display an error message if the user enters an invalid item.arrow_forwardQ2-Write a java program that has a method called stringDay to display the string named Day based on the number of day entered by the user. The method should take one argument and return a String(name of the (dayarrow_forwardStaff # name: String # id: int PartTimer + Staff() + Staff(name: String, id: int) skillLevel: int + getName (): String + getId (): int + calculatePay () : double + toString (): String hoursWorked: int + Part Timer (name: String, id: int, skillLevel: int, hoursWorked: int) + getskillLevel(): int + getHours Worked () : int + tostring () : String java.lang.Comparable compareTo (o: Object): int Figure 1: The relationship between staff, PartTimer and Comparable Skill Level / Tahap Kemahiran Pay Rate Per Hour/ Kadar Bayaran Per Jam 0 ( Basic / Asas) RM50.00 1 (Moderate / Sederhana) RM100.00 RM150.00 2 (Expert / Mahir) Table 1: Skill level and the pay rate per hour Write a complete Java program to create PartTimer class and test class based on the Figure 1, Table 1 and the following requirements: Partimer class is derived from staff and implements Comparable Interface. The calculate Pay()method from the staff class will be implemented in the subclass to calculate the employee's pay. The pay…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT