Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 6.21PE
(Phone keypads) The international standard letter/number mapping for telephones is given in
public static int getNumber(char uppercaseletter)
Write a test program that prompts the user to enter a phone number as a string. The input number may contain letters. The program translates a letter (uppercase or lowercase) to a digit and leaves all other characters intact. Here are sample runs of the program:
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
:Write some statements that display a list of integers from 10 to 20
inclusive ,each with its square root next to it.
Write a single statement to find and display the sum of the successive
even integers 2, 4, ..., 200. (Answer: 10 100)
Ten students in a class write a test. The marks are out of 10. All the
marks are entered in a MATLAB vector marks. Write a statement to find
and display the average mark. Try it on the following marks:
580 10 3 85794 (Answer: 5.9)
public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string.This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is,str = new StringBuilder(str).reverse().toString();
Here's the tester it must pass:
@Test public void testPancakeScramble() throws IOException {// Explicit test casesassertEquals("", P2J3.pancakeScramble(""));assertEquals("alu",…
Write a function that finds the number of occurrences of a specified character in a string using the following header:def count(s, ch):The str class has the count method. Implement your method without using the count method. For example, count("Welcome", 'e') returns 2. Write a test program that prompts the user to enter a string followed by a character and displays the number of occurrences of the character in the string.
Chapter 6 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 6.4 - What are the benefits of using a method?Ch. 6.4 - Prob. 6.4.2CPCh. 6.4 - How do you simplify the max method in Listing 6.1...Ch. 6.4 - Prob. 6.4.4CPCh. 6.4 - Prob. 6.4.5CPCh. 6.4 - Prob. 6.4.6CPCh. 6.4 - Prob. 6.4.7CPCh. 6.4 - Write method headers (not the bodies) for the...Ch. 6.4 - Identify and correct the errors in the following...Ch. 6.4 - Prob. 6.4.10CP
Ch. 6.5 - Prob. 6.5.1CPCh. 6.5 - Identify and correct the errors in the following...Ch. 6.5 - Prob. 6.5.3CPCh. 6.5 - Prob. 6.5.4CPCh. 6.6 - Prob. 6.6.1CPCh. 6.6 - Prob. 6.6.2CPCh. 6.7 - What is hexCharToDecimal ( B)) ? What is...Ch. 6.8 - What is method overloading? Is it permissible to...Ch. 6.8 - What is wrong in the following program? public...Ch. 6.8 - Given two method definitions, public static double...Ch. 6.9 - Prob. 6.9.1CPCh. 6.9 - What is the scope of a local variable?Ch. 6 - (Math: pentagonal numbers) A pentagonal number is...Ch. 6 - (Sum the digits in an integer) Write a method that...Ch. 6 - (Palindrome integer) Write the methods with the...Ch. 6 - (Display an integer reversed) Write a method with...Ch. 6 - (Sort three numbers) Write a method with the...Ch. 6 - (Display patterns) Write a method to display a...Ch. 6 - (Financial application: compute the future...Ch. 6 - (Conversions between Celsius and Fahrenheit) Write...Ch. 6 - Prob. 6.9PECh. 6 - (Use the isPrime Method) Listing 6.7,...Ch. 6 - (Financial application: compute commissions) Write...Ch. 6 - (Display characters) Write a method that prints...Ch. 6 - (Sum series) Write a method to compute the...Ch. 6 - (Estimate ) can be computed using the following...Ch. 6 - (Financial application: print a tax table) Listing...Ch. 6 - Prob. 6.16PECh. 6 - Sections 6.10 and 6.11 6.17 (Display matrix of 0s...Ch. 6 - (Check password) Some Websites impose certain...Ch. 6 - (Triangles) Implement the following two methods: /...Ch. 6 - (Count the letters in a string) Write a method...Ch. 6 - (Phone keypads) The international standard...Ch. 6 - (Math: approximate the square root) There are...Ch. 6 - (Occurrences of a specified character) Write a...Ch. 6 - (Display current date and time) Listing 2.7,...Ch. 6 - Prob. 6.25PECh. 6 - (Palindromic prime) A palindromic prime is a prime...Ch. 6 - (Emirp) An emirp (prime spelled backward) is a...Ch. 6 - (Mersenne prime) A prime number is called a...Ch. 6 - (Twin primes) Twin primes are a pair of prime...Ch. 6 - (Game: craps) Craps is a popular dice game played...Ch. 6 - (Financial: credit card number validation) Credit...Ch. 6 - (Game: chance of winning at craps) Revise...Ch. 6 - (Current date and time) Invoking System....Ch. 6 - (Print calendar) Programming Exercise 3.21 uses...Ch. 6 - (Geometry: area of a pentagon) The area of a...Ch. 6 - (Geometry: area of a regular polygon) A regular...Ch. 6 - (Format an integer) Write a method with the...Ch. 6 - (Generate random characters) Use the methods in...Ch. 6 - (Geomentry: point position) Programming Exercise...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
What is wrong with the following while statement? 1 while (z = 0) { 2 sum += z; 3 }
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
A minus sign placed in front of a field width specification causes the field to be displayed left-justified. Su...
Programming in C
(Tabular Output) Write a program that utilizes looping to produce the following table of values:
C How to Program (8th Edition)
Suppose a manufacturer produces a computer chip and later discovers a flaw in its design. Suppose further that ...
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
It is difficult to make a budget that spans several years, because prices are not stable. If your company needs...
Problem Solving with C++ (10th Edition)
Explain why incremental development is the most effective approach for developing business software systems. Wh...
Software Engineering (10th Edition)
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
- public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string. This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is, str = new StringBuilder(str).reverse().tostring(); A bit convoluted, but does what is needed without fuss or muss. Maybe one day the Java strings will come with the reverse method built in, just like the string data types of all sensible…arrow_forwardLanguage :Python write a program that asks the user to enter a series of single digit numbers with nothing seperating them. The program should display the sum of all the single digit numbers in the string. For example, if the user enters 2514 the method should return 12, which is hw sum of 2,5,1 and 4. write a program that reads a string from the user containing a date in the form mm/dd/yy. it should print the date in the format March 12, 2018.arrow_forwardpublic static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current stringarrow_forward
- Write a method that finds the number of occurrences of a specified character in a string using thefollowing header:public static int countLetter(String str, char ch)Write a test program that prompts the user to enter a word and a letter of the alphabet. Theprogram should then count and display the number of occurrences of the letter in the word. Asample dialog for the program is shown below:arrow_forwardLanguage: Java Write a program that reads a sentence from the keyboard. Depending on the last character of the sentence, print the message identifying the sentence as declarative (ends with a period), interrogative (ends with a question mark), exclamatory (end with an exclamation point), or other. Hint: you can use charAt() method from the String class to extract the last character of the input line. The character of a String str is at str.length()-1 position. For taking a sentence as input use the nextLine() method from the Scanner class. You have to use if/else if selection. Sample input and output: Sample 1 Input: How are you? Output: Interrogative Sample 2 Input: I am good. Output: Declarative Sample 3 Input: That is amazing! Output: Exclamatory Sample 4 Input: Although, Output: Other Answer:arrow_forwardjava: Run length coding is a method to represent a string in a more compact manner. Each character that occurs more than 2 times in a row is represented by the character and a number following it. Two examples are: "abba" → "abba""abcccbbbba" → "abc3b4a"Write a function that calculates how many characters the encoded string is shorter than the original.arrow_forward
- Class: Blocks Write a program that prompts for an integer (that a side length) and displays, using asterisks, a filled and hollow square, placed next to each other. For example if the side length is 5, the program should display: ***** ********** * ****** * ****** * ****** *****arrow_forwardPlease complete the following Java program using the math.random function. USE THE Math.random() class. DO NOT use arrays, the Random function. (i.e keep the program simple using while loops, if/else, for loops, etc)arrow_forwardPLEASE NOTE: IT'S A TEXT BOOK EXERCISE. BOOK NAME: Fundamentals of Computer Programming with Programming Basics with C# (English) Problem: String Encryption Write a method Encrypt(char letter), which encrypts a given letter in the following way: It takes the first and the last digit from the ASCII code of the letter and concatenates them into a string, which will represent the result. In the beginning of the string, which represents the result, we will insert the symbol which matches the following condition: ASCII code of the letter + the last digit of the ASCII code of the letter. After that in the end of the string, which represents the result, you concatenate the character which matches the following condition: ASCII code of the letter - the first digit of the ASCII code of the letter. The method should return the encrypted string. Example: j → p16i ASCII code of j is 106 → First digit – 1, last digit – 6. We concatenate the first and the last digit → 16. At the beginning…arrow_forward
- Three numbersa. Write a program that reads three numbers and prints “all the same” if they are allthe same, “all different” if they are all different, and “neither” otherwise.b. Write a program that reads three numbers and prints “increasing” if they are inincreasing order, “decreasing” if they are in decreasing order, and “neither”otherwise. Here, “increasing” means “strictly increasing”, with each value largerthan its predecessor. The sequence 3 4 4 would not be considered increasing.c. Repeat part b. but before reading the numbers, ask the user whetherincreasing/decreasing should be “strict” or “lenient”. In lenient mode, thesequence 3 4 4 is increasing and the sequence 4 4 4 is both increasing anddecreasingarrow_forwardImplement the following function which accepts a string as parameter and reverses it, without using any function from the string library. void strReverse(char *str)arrow_forwardConsider the following code. What will be printed out by the code?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
Program to find HCF & LCM of two numbers in C | #6 Coding Bytes; Author: FACE Prep;https://www.youtube.com/watch?v=mZA3cdalYN4;License: Standard YouTube License, CC-BY