Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7.3, Problem 18STQ
Suppose a is an array of values of type double that is partially filled. The array contains meaningful values in only the first numberUsed elements, where numberUsed is a variable of type int. Write some code to display all the meaningful values in the array a.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
1. Create an array named arr1 with 20 random numbers between 1 and 10(inclusively). Then
produce a new array arr2 based on arr1 as follows: arr2 has the same length as arr1. In arr2, each
element is the sum of the corresponding element in arr1 and the previous element of arr1, except
the first number in arr2 equals the first number in arr1. For example,
If arr1 has the elements:
Then arr2 will be:
2 5 19 3 7 6...
2 7 6 10 12 10 13...
Please display the two arrays.
Declare an array of ints named scores and assign it the values 90, 80, 70 using static initialization.
Important: Please do not use any blank spaces between elements in your array, or any unnecessary
spaces, or your answer will be marked incorrect.
Create a two-dimensional array of type double to contain the three different SD Marks (JD521, PRG521, and IP521) for six different students. A single array of type String must be used to store the student names (Maxwell, Carl, Gerhard, Paul, James, and Cena).
Allow a user to enter in a number, ranging from 1 to 6, which will represent the student position in the table MCSD max and present the marks for each respecting module. The program can only stop when the user enter a number greater than 6.
Printout the student name including the JD521, PRG521, and IP521 max, the total of marks and the average of all marks. Use a condition statement to decide that the student has passed or not (Pass rate is 70).
Chapter 7 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - Consider the following array: int [] a = new...Ch. 7.1 - What is wrong with the following code to...Ch. 7.1 - Write a complete Java program that reads 20 values...Ch. 7.2 - Write some Java code that will declare an array...Ch. 7.2 - Rewrite the method displayResults of the program...Ch. 7.2 - What output will be produced by the following...Ch. 7.2 - Give the definition of a static method called...
Ch. 7.2 - Give the definition of a static method called...Ch. 7.2 - Prob. 12STQCh. 7.2 - The following method compiles and executes but...Ch. 7.2 - Suppose that we add the following method to the...Ch. 7.3 - Prob. 15STQCh. 7.3 - Replace the last loop in Listing 7.8 with a loop...Ch. 7.3 - Suppose a is an array of values of type double....Ch. 7.3 - Suppose a is an array of values of type double...Ch. 7.3 - Prob. 19STQCh. 7.3 - Consider the partially filled array a from...Ch. 7.3 - Repeat the previous question, but this time assume...Ch. 7.3 - Write an accessor method getEntryArray for the...Ch. 7.4 - Prob. 23STQCh. 7.4 - Write the invocation of the method selectionSort...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - Consider an array b of int values in which a value...Ch. 7.5 - What output is produced by the following code?...Ch. 7.5 - Revise the method showTable in Listing 7.13 so...Ch. 7.5 - Write code that will fill the following array a...Ch. 7.5 - Write a void method called display such that the...Ch. 7.6 - Prob. 33STQCh. 7.6 - Prob. 34STQCh. 7 - Write a program in a class NumberAboveAverage that...Ch. 7 - Write a program in a class CountFamiles that...Ch. 7 - Write a program in a class CountPoor that counts...Ch. 7 - Write a program in a class FlowerCounter that...Ch. 7 - Write a program in a class characterFrequency that...Ch. 7 - Create a class Ledger that will record the sales...Ch. 7 - Define the following methods for the class Ledger,...Ch. 7 - Write a static method isStrictlyIncreasing (double...Ch. 7 - Write a static method removeDuplicates(Character[]...Ch. 7 - Write a static method remove {int v, int [] in}...Ch. 7 - Suppose that we are selling boxes of candy for a...Ch. 7 - Create a class polynomial that is used to evaluate...Ch. 7 - Write a method beyond LastEntry (position) for the...Ch. 7 - Revise the class OneWayNoRepeatsList, as given in...Ch. 7 - Write a static method for selection sort that will...Ch. 7 - Overload the method selectionSort in Listing 7.10...Ch. 7 - Revise the method selectionSort that appears in...Ch. 7 - Prob. 18ECh. 7 - Write a sequential search of an array of integers,...Ch. 7 - Write a static method findFigure (picture,...Ch. 7 - Write a static method blur (double [] [] picture)...Ch. 7 - Write a program that reads integers, one per line,...Ch. 7 - The following code creates a small phone book. An...Ch. 7 - Write the method rotateRight that takes an array...Ch. 7 - The following code creates a ragged 2D array. The...Ch. 7 - Write a program that will read a line of text that...Ch. 7 - A palindrome is a word or phrase that reads the...Ch. 7 - Add a method bubbleSort to the class ArraySorter,...Ch. 7 - Add a method insertionSort to the class...Ch. 7 - The class TimeBook in Listing 7.14 is not really...Ch. 7 - Define a class called TicTacToe. An object of type...Ch. 7 - Repeat Programming Project 10 from Chapter 5 but...Ch. 7 - Prob. 8PPCh. 7 - Write a GUI application that displays a picture of...Ch. 7 - ELIZA was a program written in 1966 that parodied...Ch. 7 - Prob. 11PPCh. 7 - Create a GUI application that draws the following...Ch. 7 - Practice Program 2 used two arrays to implement a...Ch. 7 - Practice Program 5.4 asked you to define Trivia...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Why is the study of database technology important?
Database Concepts (7th Edition)
Car Loan If A dollars are borrowed at r interest compounded monthly to purchase a car with monthly payments for...
Introduction To Programming Using Visual Basic (11th Edition)
3.12 (Date Create a class called Date that includes three pieces Of information as data
members—a month (type ...
C++ How to Program (10th Edition)
Object composition is useful for creating a(n) _____ relationship between two classes.
Starting Out with C++: Early Objects
State whether each of the following is true or false. If false, explain why. The expression ((x y) (a b)) is ...
Java How To Program (Early Objects)
What is the general problem with static scoping?
Concepts of Programming Languages (11th 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
- Create a two-dimensional array of type double to contain the three different SD Marks (JD521, PRG521, and IP521) for six different students. A single array of type String must be used to store the student names (Maxwell, Carl, Gerhard, Paul, James, and Cena). Allow a user to enter in a number, ranging from 1 to 6, which will represent the student position in the table MCSD max and present the marks for each respecting module. The program can only stop when the user enter a number greater than 6. Printout the student name including the JD521, PRG521, and IP521 max, the total of marks and the average of all marks. Use a condition statement to decide that the student has passed or not (Pass rate is 70). This should be in Java Netbeans.arrow_forwardCreate a two-dimensional array of type double to contain the three different SD Marks (JD521, PRG521, and IP521) for six different students. A single array of type String must be used to store the student names (Maxwell, Carl, Gerhard, Paul, James, and Cena). Allow a user to enter in a number, ranging from 1 to 6, which will represent the student position in the table MCSD max and present the marks for each respecting module. The program can only stop when the user enter a number greater than 6. Printout the student name including the JD521, PRG521, and IP521 max, the total of marks and the average of all marks. Use a condition statement to decide that the student has passed or not (Pass rate is 70). This should be in Java.arrow_forward1. Create a 2D char array called grades, to save the grades for three students for five courses (size 3 by 5). Write the nested for loop to initialize the first row with ‘A’, second row ‘B’, and third-row ‘C’. 2. Say the second student got C for the fifth course. The third student got an A for the first course. Make the changes to the above array. 3. Print out the array elements in the 2-dimensional format like the following. Make sure you print out the student # and course numbers so one can easily locate an array element. Format your output like the following.arrow_forward
- Create a two-dimensional array of type double to contain the three different SD Marks (JD521, PRG521, and IP521) for six different students. A single array of type String must be used to store the student names (Maxwell, Carl, Gerhard, Paul, James, and Cena). Allow a user to enter in a number, ranging from 1 to 6, which will represent the student position in the table MCSD max and present the marks for each respecting module. The program can only stop when the user enter a number greater than 6.arrow_forwardCreate a function that returns the lowest neighbor of a given (x, y) coordinate element in a 2D array. The function will be passed three parameters. arr, x, y arr will be a 2D array holding integer values and will always be symmetrical in size (e.g. 2x2, 3x3, 4x4). x will hold the row coordinate, while y will hold the column coordinate. You will have to check the horizontal, vertical and diagonal neighbor elements. If there isn't any lower neighbors, return the value of the given (x, y) coordinate. Examples lowestElement([ [1, 2, 3], [4, 5, 6], [ [7, 8, 9] ], 1, 1) → 1 [1, 2, 3] [4, 5, 6] // (1, 1) holds the integer 5. Check the surrounding neighbors. [7, 8, 9] ]arrow_forward1. Create a 2D char array called grades, to save the grades for three students for five courses (size 3 by 5). Write the nested for loop to initialize the first row with ‘A’, second row ‘B’, and third-row ‘C’. 2. Say the second student got C for the fifth course. The third student got an A for the first course. Make the changes to the above array. 3. Print out the array elements in the 2-dimensional format like the following. Make sure you print out the student # and course numbers so one can easily locate an array element. Format your output like the following. After initialization: Grades of 3 students Course1 Course2 Course3 Course4 Course5Student 1: A A A A AStudent 2: B B B B BStudent 3: C C C C C After change:…arrow_forward
- Checkpoint 1: Create an array and initialize all the elements to 0. Write a loop that will display cach elements position and value. That is show "my_arrayf3] = 0" for each element as output where 3 is the 4th clement in the array and 0 is value of that element. Now assign random values to cach element. You can use the function rand() which will return an integer. This function will return a number between 0 and RAND MAX = 32767. You can mod the value retumed by rand() by 16 to fit the range 0 to 15. For debugging, the seed is the same until you change it. This means all the output numbers will be the same as in the sample output. Checkpoint 2: We want to calculate some base statistics for the array. You can access each element of the array by using "my array[i]" where i is the index of the array. You may use a loop to run through each index to cover the entire array. We will start finding statistics for this array by finding the maximum value, minimum value, and sum of all values in…arrow_forward1. Create a struct called Booking that consists of a 3 digit flight number (e.g. 234), type of seat (E or B), the priceof a seat in economic class and the number of seats booked.Declare an array to store at least 30 Booking structs. 2. The user must be able to enter the information for a number of bookings from the keyboard. Ask whether abooking must be made (Y or N). If a booking must be made, a random 3 digit flight number must be generated.The user must be asked to enter the type of seat, the price per seat and the number of seats to book.Example of input:arrow_forwardArray. Make the code as simple as possible.arrow_forward
- 2. Creates an array of Triangle type of size 10. Prompts the user to enter the index of the array, then displays the area of corresponding element value. If the specified index is out of bounds, display the message Out of Bounds.arrow_forwardCreate a Numpy List named as marks with six float numbers, showing the final marks of a student in six subjects. Round the marks from marks array from Q-3 a) upto two decimal numbers What if you need to create the same list as Q-3 a), but for five students. Can you still use 1-D array? How many dimensions should be there?arrow_forwardJAVA Your teacher has created two arrays, each holding the results of tests, say Test 1 and Test 2. You need to create a new array which holds the averages of these two tests. You may assume that the first element of the first test array refers to the student who also has the grade in the first element of the second test, and the last element in each array are the grades the last student earned for each test. All students received grades for both tests, meaning both test arrays are of the same length. Complete the method, named makeAverage, in the class named Grades.java. There are two parameters to this method: the first is the integer array representing the grades of the first test, and the second is the array containing the grades of the second test. The new average array should be returned by the method. The grades should be treated as double variables. For example, consider the test grades for the five students in the following arrays: [ 87 ] [ 91 ] [ 76 ] [ 76 ] [ 94 ]…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
9.1: What is an Array? - Processing Tutorial; Author: The Coding Train;https://www.youtube.com/watch?v=NptnmWvkbTw;License: Standard Youtube License