Introduction to Java Programming and Data Structures Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134700144
Author: Liang
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7.9, Problem 7.9.1CP
a)
Program Plan Intro
Variable-length argument (varargs):
In a method, the variable-length argument refers the variable number of arguments of same type. A method can contain only one variable-length parameter and the parameter must be the last parameter in the method.
Syntax:
Syntax to refer the variable-length argument is as follows:
typeName... parameterName
Example:
//variable length argument
double… num
b)
Explanation of Solution
Given Header:
public static void print(double... numbers, String... name)
Wrong with the given method header:
c)
Explanation of Solution
Given Header:
public static double... print(double d1, double d2)
Wrong with the given method header:
The return t...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Write a method that prints numbers using the following header:public static void printNumbers(int num1, int num2, intnumberPerLine)This method prints the characters between num1 and num2 with the specifiednumbers per line. Write a test program that prints ten characters per line from 1to 100. Numbers are separated by exactly one space.
a. public static boolean isEven(int n1, int
n2)
b. public static bool isEven(int nl)
c. public static void isEven(int nl)
d. public static boolean isEven(int nl)
3. Select the header of a method for testing whether a
number is even.
6. Write a method that reads three strings from the keyboard. Although the strings are in no particular order, display the string that would be second if they were arranged lexicographically.
7. Write a method that reads a one-line sentence as input and then displays the following response: If the sentence ends with a question mark (?) and the input contains an even number of characters, display the word Yes. If the sentence ends with a question mark and the input contains an odd number of characters, display the word No. If the sentence ends with an exclamation point (!), display the word Wow. In all other cases, display the words You always say followed by the input string enclosed in quotes. Your output should all be on one line. Be sure to note that in the last case, your output must include quotation marks around the echoed input string. In all other cases, there are no quotes in the output. Your program does not have to check the input to see that the user has entered a…
Chapter 7 Solutions
Introduction to Java Programming and Data Structures Comprehensive Version (11th Edition)
Ch. 7.2 - Prob. 7.2.1CPCh. 7.2 - Prob. 7.2.2CPCh. 7.2 - What is the output of the following code? int x =...Ch. 7.2 - Indicate true or false for the following...Ch. 7.2 - Which of the following statements are valid? a....Ch. 7.2 - Prob. 7.2.6CPCh. 7.2 - What is the array index type? What is the lowest...Ch. 7.2 - Write statements to do the following: a. Create an...Ch. 7.2 - What happens when your program attempts to access...Ch. 7.2 - Identify and fix the errors in the following code:...
Ch. 7.2 - What is the output of the following code? 1....Ch. 7.4 - Will the program pick four random cards if you...Ch. 7.5 - Use the arraycopy method to copy the following...Ch. 7.5 - Prob. 7.5.2CPCh. 7.7 - Suppose the following code is written to reverse...Ch. 7.8 - Prob. 7.8.1CPCh. 7.8 - Prob. 7.8.2CPCh. 7.9 - Prob. 7.9.1CPCh. 7.9 - Prob. 7.9.2CPCh. 7.10 - If high is a very large integer such as the...Ch. 7.10 - Prob. 7.10.2CPCh. 7.10 - Prob. 7.10.3CPCh. 7.11 - Prob. 7.11.1CPCh. 7.11 - How do you modify the selectionSort method in...Ch. 7.12 - What types of array can be sorted using the...Ch. 7.12 - To apply java.util.Arrays.binarySearch (array,...Ch. 7.12 - Show the output of the following code: int[] list1...Ch. 7.13 - This book declares the main method as public...Ch. 7.13 - Show the output of the following program when...Ch. 7 - (Assign grades) Write a program that reads student...Ch. 7 - (Reverse the numbers entered) Write a program that...Ch. 7 - (Count occurrence of numbers) Write a program that...Ch. 7 - (Analyze scores) Write a program that reads an...Ch. 7 - (Print distinct numbers) Write a program that...Ch. 7 - (Revise Listing 5.1 5, PrimeNumber.java) Listing...Ch. 7 - (Count single digits) Write a program that...Ch. 7 - (Average an array) Write two overloaded methods...Ch. 7 - (Find the smallest element) Write a method that...Ch. 7 - Prob. 7.10PECh. 7 - (Statistics: compute deviation) Programming...Ch. 7 - (Reverse an array) The reverse method in Section...Ch. 7 - Prob. 7.13PECh. 7 - Prob. 7.14PECh. 7 - 7 .15 (Eliminate duplicates) Write a method that...Ch. 7 - (Execution time) Write a program that randomly...Ch. 7 - Prob. 7.17PECh. 7 - (Bubble sort) Write a sort method that uses the...Ch. 7 - (Sorted?) Write the following method that returns...Ch. 7 - (Revise selection sort) In Listing 7 .8, you used...Ch. 7 - (Sum integers) Write a program that passes an...Ch. 7 - (Find the number of uppercase letters in a string)...Ch. 7 - (Game: locker puzzle) A school bas 100 lockers and...Ch. 7 - (Simulation: coupon collectors problem) Coupon...Ch. 7 - (Algebra: solve quadratic equations) Write a...Ch. 7 - (Strictly identical arrays) The arrays 1ist1 and...Ch. 7 - (Identical arrays) The arrays 1ist1 and 1ist2 are...Ch. 7 - (Math: combinations) Write a program that prompts...Ch. 7 - (Game: pick four cards) Write a program that picks...Ch. 7 - (Pattern recognition: consecutive four equal...Ch. 7 - (Merge two sorted Lists) Write the following...Ch. 7 - (Partition of a list) Write the following method...Ch. 7 - Prob. 7.33PECh. 7 - (Sort characters in a string) Write a method that...Ch. 7 - (Game: hangman) Write a hangman game that randomly...Ch. 7 - (Game: Eight Queens) The classic Eight Queens...Ch. 7 - Prob. 7.37PE
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
- 2) Two integers are said to be relatively prime if their greatest common divisor (GCD) is one. For example 12 and 13 are relatively prime, but 12 and 14 are not. a. Write a method called relativelyPrime that accepts two integer parameters A and B. The method should output if A, and B are relatively prime or nat. Use the following method header: public static void relativelyPrime(int A, int B) b. Write a test program (main) to test the method by asking the user to input two positive integers X and Y. Then the program will call the method relativelyPrime to output if X and Y are relatively prime or not. Sample Run 1: Enter Two positive integers X and Y: 12 13 12 and 13 are relatively prime Sample Run 2: Enter Two positive integers X and Y: 12 14 12 and 14 are not relatively primearrow_forwardattempt3D1348469&cmid%3D701970&page%3D1 Oriented Programming fall20 What is the correct way to invoke methods on variables in Java that are strings? Select one: a. There are no methods available in Java for string variables. b. Invoke them using the variable name and the dot (0 notation, c. For each method there is a special operator that must be used. d. Methods can only be invoked string constants. not on varlablesarrow_forwardJava code Calculate differencearrow_forward
- use only C# programming Write a method call CubeIt(int x, ref int cube) that takes two arguments and does not return a value. The method will cube the first argument and assign it to the second argument.In your main, call this method twice and print the value of the parameters after each method call. Write a method with the following header: static void CalculateTuitionFee(int numberOfCourses, double costPerCourse, ref double fees). This method will calculate and assign the required fees amount to the third argument. [Fees = number of courses * cost per course + 15.25].From your program Main() method, call the CalculateTuitionFee () method four times supplying different arguments each time and display the value of the third argument after each method call. Write a method that takes four parameter of type int. The method will assign the sum of the first two arguments to the third and the difference of the first two to the fourth. This method should be coded so that the calling…arrow_forward4) To define a method checkNumber to check a. public static boolean checkNumber (integer x) b. public static int checkNumber (integer x) and return if a given integer is odd or not, we write the header as : c. public static int checkNumber (int x) d. public static void checkNumber (int x) e. None of the abovearrow_forwardClass: DoubleMethod Write a method using the header below public static double readDouble(String prompt) that displays the prompt string, followed by a space, then reads a floating-point number from the user, and returns it. Here is a typical usage: salary = readDouble("Please enter your salary:");percentageRaise = readDouble("What percentage raise would you like?");Write a test program to test the method.arrow_forward
- Methods Java Write the appropriate method headings using the provided method name for the following processes: 1.) Given the radius of a circle, print the area of a circle - printArea. 2.) Accept an integer, compute for the square of the number and return the String equivalent of the square of the number - makeString 3.) Calculate and return the sum of two decimal numbers - getSum. 4.) Given a student’s name and three test scores (of type int), print the student’s name and average test score - printStudentDetails. 5) Compute and return the average speed of a car, given the distance traveled (as type double) and traveling time (in hours and minutes, both of type int) - getAverageSpeed. Âarrow_forwardClass Utilities { Method Details addDelimiter: public static java.lang.String addDelimiter(java.lang.String str, char delimeter) Returns a string where characters are separated by the specified delimeter character. A string with a single character will not have a delimeter added. The space character is consider a character (similar to character 'A'). You can assume str will never be the empty string. You may not use an auxiliary method in order to implement this method. Your implementation must be recursive and you may not use any loop construct. Note: In java given two characters a and b, a + b will not create a string. To create a string, append a to the empty string and the result to b. From the String class, the only methods you can use are length(), isEmpty(), charAt() and substring. Do not use ++ or -- in any recursive call argument. It may lead to an infinite recursion. For example, use index + 1, instead of index++. Parameters: str - delimeter - Returns: String with characters…arrow_forwardc# Now, modify the program so that the major functions appear in the following individual methods: GetMonth - This method prompts for and returns the month GetNumMurals - This method prompts for and returns the number of murals scheduled and is called twice -- once for interior murals and once for exterior murals ComputeRevenue - This method accepts the number of interior and exterior murals scheduled, accepts the month they are scheduled, displays the interior and exterior prices, and then returns the total expected revenue DataEntry - This method fills an array with customer names and mural codes and is called twice -- once to fill the array of interior murals and once to fill the array of exterior murals GetSelectedMurals - This method continuously prompts for mural codes and displays jobs of the corresponding type until a sentinel value is entered using systeml using static System.Console; using System.Globalization; class MarshallsRevenue { staticvoidMain() { // Your code here…arrow_forward
- Write a method that returns the number of days in ayear using the following header:public static int numberOfDaysInAYear(int year)Write a test program that displays the number of days in the years between 2014and 2034.arrow_forwardWrite a program that contains 2 methods, main and printLine (10 points) 1) The printLine method will do the following: a. receives 3 parameters: the first character, the second character and the number of times to print the characters. b. using a loop, the program prints a line of text consisting of the first character concatenated with the second character repeated the number of times entered by the user. 2) The main method will do the following: a. asks the user for a character. b. using a Scanner gets the character C. asks the user for a second character. d. using a Scanner gets the second character e. asks the user how many times to print f. using a Scanner gets the number of times to print g. calls the method printLine. Sample Run: Enter a character ? Enter a second character Enter the number of times to repeat 5 ?*?*?*?"?* Enter a character ! Enter a second character @ Enter the number of times to repeat 8 !@!@!@!@!@!@!@!@ Submission • Copy and paste your code • Screen shot the…arrow_forwardUse java code to completearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage