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 7, Problem 7.15PE
7 .15 (Eliminate duplicates) Write a method that returns a new array by eliminating the duplicate values in the array using the following method header:
public static int[] eliminateDuplicates(int[] list)
Write a test
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
6.25 LAB: Step counter
IN JAVA **
A pedometer treats walking 1 step as walking 2.5 feet. Define a method named feetToSteps that takes a double as a parameter, representing the number of feet walked, and returns an integer that represents the number of steps walked. Then, write a main program that reads the number of feet walked as an input, calls method feetToSteps() with the input as an argument, and outputs the number of steps.
Use floating-point arithmetic to perform the conversion.
Ex: If the input is:
150.5
the output is:
60
The program must define and call a method:public static int feetToSteps(double userFeet)
import java.util.Scanner;
public class LabProgram { /* Define your method here */ public static void main(String[] args) { /* Type your code here. */ }}
6.28 LAB: Check if array is sorted
Use java Programming
Write the inOrder() method, which has an array of integers as a parameter, and returns true if the numbers are sorted (in order from low to high) or false otherwise. The program outputs "In order" if the array is sorted, or "Not in order" if the array is not sorted.
Ex: If the array passed to the inOrder() method is [5, 6, 7, 8, 3], then the method returns false and the program outputs:
Not in order
Ex: If the array passed to the inOrder() method is [5, 6, 7, 8 , 10], then the method returns true and the program outputs:
In order
public class LabProgram {public static boolean inOrder(int [] nums) {/* Type your code here. */ }public static void main(String[] args) {// Test out-of-order example.int [] nums1 = {5, 6, 7, 8, 3};if(inOrder(nums1)){System.out.println("In order");}else{System.out.println("Not in order");}// Test in-order example.int [] nums2 = {5, 6, 7, 8, 10};if(inOrder(nums2)){System.out.println("In…
Practice 5.2
Top Scorer
Write a program that ask user to key in test scores. Store the
scores in an array. Then, display number of student achieve
grade A(score 80 and above). Display a message “No score
above 80" if there is no score 80++ inside the array.
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
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Modify the temperature conversion program to print a heading above the table.
C Programming Language
Why is it useful for a programmer to have some background in language design, even though he or she may never a...
Concepts of Programming Languages (11th Edition)
Define the term unique key and give an example.
Database Concepts (8th Edition)
What is a user interface?
Starting Out with Python (3rd Edition)
Describe a method that can be used to gather a piece of data such as the users age.
Web Development and Design Foundations with HTML5 (8th 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
- Exercise 6.14 JHTP: (Variable-Length Argument List) Write an application that calculates the product of a series of integers that are passed to method product using a variable-length argument list. Test your method with several calls, each with a different number of arguments. Exercise 6.17 JHTP: (Dice Rolling) Write an application to simulate the rolling of two dice. The application should use an object of class Random once to roll the first die and again to roll the second die. The sum of the two values should then be calculated. Each die can show an integer value from 1 to 6, so the sum of the clause will vary from 2 to 12, with 7 being the most frequent sum, and 2 and 12 the least frequent. Figure 6.21 shows the 36 possible combinations of the two die. Your application should roll the dice 36,000 times. Use a one-dimensional array to tally the number of times each possible sum appears. Display the results in a tabular format. Fig. 6.21 | The possible sums of two dice.arrow_forward6.46 LAB: Subtracting list elements from max - methods (JAVA) When analyzing data sets, such as data for human heights or for human weights, a common step is to adjust the data. This can be done by normalizing to values between 0 and 1, or throwing away outliers. For this java program, adjust the values by subtracting each value from the maximum. The input begins with an integer indicating the number of integers that follow. Assume that the list will always contain between 1 and 20 integers. Ex: If the input is: 5 30 50 10 70 65 the output is: 40 20 60 0 5 For coding simplicity, follow every output value by a space, even the last one. Your program must define and call a method:public static int getMaxInt(int[] listInts, int listSize) Code starts here: import java.util.Scanner; public class LabProgram { /* Define your method here */ public static void main(String[] args) { /* Type your code here. */ }}arrow_forwardExercise 6.14 JHTP: (Variable-Length Argument List) Write an application that calculates the product of a series of integers that are passed to method product using a variable-length argument list. Test your method with several calls, each with a different number of arguments.arrow_forward
- 6.27 LAB: Toll calculation Use Java programming. Toll roads have different fees based on the time of day and on weekends. Write a method calcToll() that has three parameters: the current hour of time (int), whether the time is morning (boolean), and whether the day is a weekend (boolean). The method returns the correct toll fee (double), based on the chart below. Weekday Tolls Before 7:00 am ($1.15) 7:00 am to 9:59 am ($2.95) 10:00 am to 2:59 pm ($1.90) 3:00 pm to 7:59 pm ($3.95) Starting 8:00 pm ($1.40) Weekend Tolls Before 7:00 am ($1.05) 7:00 am to 7:59 pm ($2.15) Starting 8:00 pm ($1.10) Ex: The method calls below, with the given arguments, will return the following toll fees: calcToll(8, true, false) returns 2.95calcToll(1, false, false) returns 1.90calcToll(3, false, true) returns 2.15calcToll(5, true, true) returns 1.05 public class LabProgram {public static double calcToll(int hour, boolean isMorning, boolean isWeekend) {/* Type your code here. */ } public static void…arrow_forwardI need help with an Introduction to Java 11th edition book question. I already have a test program so don't worry about the last part. ** 10.9 (The Course class) Revise the Course class as follows: Revise the getStudents () method to return an array whose length is the same as the number of students in the course. (Hint: create a new array and copy students to it.) The array size is fixed in Listing 10.6. Revise the addStudent method to automatically increase the array size it there is no room to add more students. This is done by creating a new larger array and copying the contents of the current array to it. Implement the dropstudent method. Add a new method named clear ) that removes all students from the course. Write a test program that creates a course, adds three students, removes one, and displays the students in the course.arrow_forward6.19 LAB: Word frequencies - methods Define a method named getWordFrequency that takes an array of strings, the size of the array, and a search word as parameters. Method getWordFrequency() then returns the number of occurrences of the search word in the array parameter (case insensitive). Then, write a main program that reads a list of words into an array, calls method getWordFrequency() repeatedly, and outputs the words in the arrays with their frequencies. The input begins with an integer indicating the number of words that follow. Assume that the list will always contain less than 20 words.arrow_forward
- 7.17) Write the inOrder() method, which has an array of integers as a parameter, and returns true if the numbers are sorted (in order from low to high) or false otherwise. The program outputs "In order" if the array is sorted, or "Not in order" if the array is not sorted. Ex: If the array passed to the inOrder() method is [5, 6, 7, 8, 3], then the method returns false and the program outputs: Not in order Ex: If the array passed to the inOrder() method is [5, 6, 7, 8 , 10], then the method returns true and the program outputs: In order Code: public class Sorting { public boolean inOrder(int [] nums) { /* Type your code here. */ } public static void main(String[] args) { Sorting s = new Sorting(); // Test out-of-order example. int [] nums1 = {5, 6, 7, 8, 3}; if(s.inOrder(nums1)){ System.out.println("In order"); }else{ System.out.println("Not in order"); }arrow_forward5.28 LAB: Toll calculation (EO) Toll roads have different fees based on the time of day and on weekends. Write a method calcToll() that has three parameters: the current hour of time (int), whether the time is morning (boolean), and whether the day is a weekend (boolean). The method returns the correct toll fee (double), based on the chart below. Weekday Tolls Before 7:00 am ($1.15) 7:00 am to 9:59 am ($2.95) 10:00 am to 2:59 pm ($1.90) 3:00 pm to 7:59 pm ($3.95) Starting 8:00 pm ($1.40) Weekend Tolls Before 7:00 am ($1.05) 7:00 am to 7:59 pm ($2.15) Starting 8:00 pm ($1.10) Ex: The method calls below, with the given arguments, will return the following toll fees: calcToll(7, true, false) returns 2.95calcToll(1, false, false) returns 1.90calcToll(3, false, true) returns 2.15calcToll(5, true, true) returns 1.05 code: public class TollCalculation { public double calcToll(int hour, boolean isMorning, boolean isWeekend) { /* Type your code here. */ } public…arrow_forward6.18 Lab: Flip a Coin Define a method named coinFlip that takes a Random object and returns "Heads" or "Tails" according to a random value 1 or 0. Assume the value 1 represents "Heads" and 0 represents "Tails". Then, write a main program that reads the desired number of coin flips as an input, calls method coinFlip() repeatedly according to the number of coin flips, and outputs the results. Assume the input is a value greater than 0.arrow_forward
- 5.25 LAB: Longest string (EO) Write a method, findLongest(), that takes two strings as parameters and returns the longest string. If the strings are the same length then return the second string. Ex. If the input is: almond pistachio the method findLongest() returns and then the program outputs: pistachio Your program must define the following method:public String findLongest(String str1, String str2) import java.util.Scanner; public class LongestString {public String findLongest(String str1, String str2) {/* Type your code here. */} public static void main(String[] args) {LongestString mainObject = new LongestString();Scanner scnr = new Scanner(System.in);String str1;String str2;String longest;str1 = scnr.next();str2 = scnr.next();longest = mainObject.findLongest(str1, str2);System.out.println(longest);}}arrow_forward6.13 LAB: Merge sort The class is the same as shown at the end of the Merge sort section, with the following changes: Numbers are entered by a user in a separate helper method, readNums(), instead of defining a specific array in main(). The first number is how many integers to be sorted, and the rest are the integers. Output of the array has been moved to the method printNums(). An output has been added to mergeSort(), showing the indices that will be passed to the recursive method calls. Add code to the merge sort algorithm to count the number of comparisons performed. Add code at the end of main() that outputs "comparisons: " followed by the number of comparisons performed (Ex: "comparisons: 12") Hint: Use a static variable to count the comparisons. Note: Take special care to look at the output of each test to better understand the merge sort algorithm. Ex: When the input is: 6 3 2 1 5 9 8 the output is: unsorted: 3 2 1 5 9 8 0 2 | 3 5 0 1 | 2 2 0 0 | 1 1 3 4 | 5 5 3 3 | 4 4…arrow_forward5.24 LAB: Shift right (JAVA) Write a program in java that reads a list of integers from input into an array and modifies the array by shifting each element to the right one position and by shifting the last element to the first position. The input begins with an integer indicating the number of values that follow. Output the modified array and end with a newline. Ex: If the input is: 6 2 4 6 8 10 12 the output is: 12 2 4 6 8 10 For coding simplicity, follow every output value by a space, including the last one. Code starts here: import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); int[] userValues = new int[20]; // List of integers from input /* Type your code here. */ }}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
1.1 Arrays in Data Structure | Declaration, Initialization, Memory representation; Author: Jenny's lectures CS/IT NET&JRF;https://www.youtube.com/watch?v=AT14lCXuMKI;License: Standard YouTube License, CC-BY
Definition of Array; Author: Neso Academy;https://www.youtube.com/watch?v=55l-aZ7_F24;License: Standard Youtube License