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
expand_more
expand_more
format_list_bulleted
Question
Chapter 2.9, Problem 2.31CP
Program Plan Intro
String Methods:
String class contains several methods, which are used to perform string manipulations.
Some examples of string methods used for manipulating strings are:
- “equals(s1)” - Returns true if the given string is equals to string “s1”.
- “compareTo(s1)” - Returns an integer greater than “0” if the string is greater, returns “0” if both the strings are equals and returns less than “0” if the given string less than s1.
- “contains(s1)” -Returns true if “s1” is a substring of the given string.
- “indexof(ch)” - Returns the index of the first occurrence of character “ch” in the string. Else, it will return -1 if not matched.
- “lastIndexof(ch)” - Returns the index of the last occurrence of character “ch” in the string. Else, it will return -1 if not matched.
- “length()” - Returns the number of characters that the string contains .
- “charAt(index)” - Returns the character from the string at the specified index.
- “toUpperCase()” - Returns a new string contains uppercase letters.
- “toLowerCase()” - Returns a new string contains lower letters.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please provide the whole JAVA source code for attached screenshot's assignment.
3. 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.
10. What scope does the variable var have on lines 1, 3, 4, 8, 9, 12, 13, 19 and 20? What
values will be printed by lines 4, 9, 12 and 20?
var = 10
def fun_a():
var = 2
4
print(var)
5
6.
print("printing.…..")
7
def fun_b(var):
print(var + 5)
8
10
11
def fun_c():
12
print(var)
13
return var
14
15
print("printing again...")
16
fun_c()
fun_a()
fun_b(var)
print(var)
17
18
19
20
Chapter 2 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 2.1 - Prob. 2.1CPCh. 2.1 - When the program in Question 2.1 is saved to a...Ch. 2.1 - Complete the following program skeleton so it...Ch. 2.1 - On paper, write a program that will display your...Ch. 2.1 - Prob. 2.5CPCh. 2.1 - Every Java application program must have...Ch. 2.2 - The following program will not compile because the...Ch. 2.2 - Study the following program and show what it will...Ch. 2.2 - On paper, write a program that will display your...Ch. 2.3 - Examine the following program. // This program...
Ch. 2.3 - What will the following program display on the...Ch. 2.4 - Which of the following are illegal variable names...Ch. 2.4 - Prob. 2.13CPCh. 2.4 - Prob. 2.14CPCh. 2.4 - Prob. 2.15CPCh. 2.4 - A program declares a float variable named number,...Ch. 2.4 - Prob. 2.17CPCh. 2.4 - Prob. 2.18CPCh. 2.4 - Prob. 2.19CPCh. 2.4 - Prob. 2.20CPCh. 2.4 - What is wrong with the following statement? char...Ch. 2.5 - Prob. 2.22CPCh. 2.5 - Prob. 2.23CPCh. 2.6 - Write statements using combined assignment...Ch. 2.7 - The following declaration appears in a program:...Ch. 2.7 - The variable a is a float and the variable b is a...Ch. 2.9 - Write a statement that declares a String variable...Ch. 2.9 - Assume that stringLength is an int variable. Write...Ch. 2.9 - Prob. 2.29CPCh. 2.9 - Prob. 2.30CPCh. 2.9 - Prob. 2.31CPCh. 2.11 - Prob. 2.32CPCh. 2.11 - How are documentation comments different from...Ch. 2.14 - Prob. 2.34CPCh. 2.14 - Write code that will display each of the dialog...Ch. 2.14 - Write code that displays an input dialog asking...Ch. 2.14 - Prob. 2.37CPCh. 2 - Every complete statement ends with a __________....Ch. 2 - The following data 72 'A' Hello World 2.8712 are...Ch. 2 - A group of statements, such as the contents of a...Ch. 2 - Which of the following are not valid assignment...Ch. 2 - Which of the following are nor valid println...Ch. 2 - The negation operator is __________. a. unary b....Ch. 2 - This key word is used to declare a named constant....Ch. 2 - These characters mark the beginning of a...Ch. 2 - These characters mark the beginning of a...Ch. 2 - These characters mark the beginning of a...Ch. 2 - Which Scanner class method would you use to read a...Ch. 2 - Which Scanner class method would you use to read a...Ch. 2 - You can use this class to display dialog boxes. a....Ch. 2 - Prob. 14MCCh. 2 - Prob. 15MCCh. 2 - True or False: A left brace in a Java program is...Ch. 2 - True or False: A variable must be declared before...Ch. 2 - True or False: Variable names may begin with a...Ch. 2 - True or False: You cannot change the value of a...Ch. 2 - True or False: Comments that begin with / / can be...Ch. 2 - True or False: If one of an operators operands is...Ch. 2 - What will the following code segments print on the...Ch. 2 - int x = 0, y=2; x = y 4; System.out.println(x +...Ch. 2 - System.out.print(I am the incredible);...Ch. 2 - System.out.print(Be careful\n);...Ch. 2 - int a, x = 23; a = x % 2; System.out.println(x +...Ch. 2 - Find the Error There are a number of syntax errors...Ch. 2 - Show how the double variables temp, weight, and...Ch. 2 - Prob. 2AWCh. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, w, x, y, and z are...Ch. 2 - Prob. 5AWCh. 2 - Modify the following program so it prints two...Ch. 2 - What will the following code output? int apples =...Ch. 2 - What will the following code output? double d =...Ch. 2 - What will the following code output? String...Ch. 2 - What will the following code output? String...Ch. 2 - Convert the following pseudocode to Java code. Be...Ch. 2 - Prob. 12AWCh. 2 - Write the code to set up all the necessary objects...Ch. 2 - Prob. 14AWCh. 2 - A program has a float variable named total and a...Ch. 2 - Is the following comment a single-line style...Ch. 2 - Is the following comment a single-line style...Ch. 2 - Describe what the phrase self-documenting program...Ch. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - Prob. 6SACh. 2 - Prob. 7SACh. 2 - Prob. 8SACh. 2 - Briefly describe the difference between variable...Ch. 2 - What is the difference between comments that start...Ch. 2 - Briefly describe what programming style means. Why...Ch. 2 - Assume that a program uses the named constant PI...Ch. 2 - Assume the file Sales Average, java is a Java...Ch. 2 - Prob. 14SACh. 2 - Name, Age, and Annual Income Write a program that...Ch. 2 - Name and Initials Write a program that has the...Ch. 2 - Personal Information Write a program that displays...Ch. 2 - Star Pattern Write a program that displays the...Ch. 2 - Sales Prediction The East Coast sales division of...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Sales Tax Write a program that will ask the user...Ch. 2 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 2 - Miles-per-Gallon A cars miles-per-gallon (MPG) can...Ch. 2 - Test Average Write a program that asks the user to...Ch. 2 - Circuit Board Profit An electronics company sells...Ch. 2 - Prob. 12PCCh. 2 - Restaurant Bill Write a program that computes the...Ch. 2 - Male and Female Percentages Write a program that...Ch. 2 - Stock Commission Kathryn bought 600 shares of...Ch. 2 - Energy Drink Consumption A soft drink company...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...Ch. 2 - Word Game Write a program that plays a word game...Ch. 2 - Stock Transaction Program Last month Joe purchased...Ch. 2 - Planting Grapevines A vineyard owner is planting...Ch. 2 - Compound Interest When a bank account pays...
Knowledge Booster
Similar questions
- Write a statement that declares a String variable named city. The variable should be initialized so it references an object with the string “San Francisco”.arrow_forwardNotes: The maximum size of any c-string in this lab is 100 characters and it should be dynamically allocated in the constructor and de-allocated in the destructor. For Visual Studio you need to put the following line as first top line in your source code file: #define _CRT_SECURE_NO_WARNINGS Question 1: The class Person contains the following properties and functions: -Name (c-string), private. -Age (int), private - Address (c-string), private - Constructors (default and non-default) -Getters and Setters -Destructor: to free the memory and print the message "Object with name [PERSON_NAME] is dead" where PERSON_NAME is the person name for the object being disposed. Print function to print the details of the employee. Test your class with the following main: int main() { Person per1; Person per2("Ahmad", "AUS Campus", 21); cout << "Person per1 :\n"; per1.print(); cout << "\nPerson per2 :\n"; per2.print(); cout<<"\nTesting the setters functions: \nSetting perl name to Johnny English,…arrow_forwardWrite an application that accepts three Strings from the user and displays them in alphabetical order without regard to case.arrow_forward
- 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.The code must be visible!!!arrow_forwardCompare userNumber with compareNumber and display 'Numbers are not equal' if the numbers are different. Then, display 'Variables are not identical' if the variables are not identical (not strictly equal). let compareNumber = 3; // Code will be tested with: 3, 8, 42let userNumber = '3'; // Code will be tested with: '3', 8, 'Hi'arrow_forwardCarly’s Catering provides meals for parties and special events. In previous chapters, you have developed a class that holds catering event information and an application that tests the methods using four objects of the class. Now modify the Event and EventDemo classes as follows: Modify the method that sets the event number in the Event class so that if the argument passed to the method is not a four-character String that starts with a letter followed by three digits, then the event number is forced to A000. If the initial letter in the event number is not uppercase, force it to be so. Add a contact phone number field to the Event class. Add a set method for the contact phone number field in the Event class. Whether the user enters all digits or any combination of digits, spaces, dashes, dots, or parentheses for a phone number, store it as all digits. For example, if the user enters (920) 872-9182, store the phone number as 9208729182. If the user enters a number with fewer or more…arrow_forward
- 6. Add 10 string variable definitions.arrow_forwardWrite an application for Cody’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 $25, $22, $15, or $5, accordingly. Display Invalid Entry if the user enters an invalid item. An example of the program is shown below: Enter selection: oil change tire rotation battery check brake inspection battery check battery check price is $15arrow_forward7. You have the following property in your Employee.cs class. You would like to add validation to ensure the title is less than 50 characters with an error message of "Title must be 50 characters or less" public string Title { get; set; } What validation attribute will you use? 1. [Required(50, ErrorMessage = "Title must be 50 characters or less.")] 2. [StringLength(50)] 3. [StringLength(30, ErrorMessage = "Title must be 30 characters or less.")] 4. [StringLength(50, ErrorMessage = "Title must be 50 characters or less.")]arrow_forward
- Fill in the places with underscores. B4: =IF(B3>B_ „IF(B3>=B ,"OK","No") =IF(AND(B3>=B_,B3<=B_)," _","_")) 11 11 -arrow_forwardPlease help me! The program is able to accept 3 input scores from the user. The average of the 3 scores can also be obtained. How do I show thw highest score and the lowest score from the 3 input scores. strictly use this program below import csv# Define global variablesstudent_fields = [' Student No.', ' Name', ' Age', ' Email address']math = ['Math']physics = ['Physics']computer = ['Computer']average = ['Average']student_database = 'students.csv' def display_menu():print(" Welcome to Student Management System ")print("1. Add New Student")print("2. View Students")print("3. Search Student")print("4. Update Student")print("5. Delete Student")print("6. Quit") def add_student():print("Add Student Information")global student_fieldsglobal mathglobal physicsglobal computerglobal averageglobal student_database student_data = []for field in student_fields:value = input("Enter" + field + ": ")student_data.append(value)for m in math:m = int(input("Enter your math grade: "))student_data.append(m)…arrow_forwardTrue or False: xi. In case we want to implement a JavaScript fallback, we would need to create a conditional statement using Modernizr.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage