Assume that you have already declared an int array named attendance that has 31 elements. What is true about the following code: for ( int dayI = 0; dayI < attendance.length; ++dayI) { System.out.println ( dayI ); O It will not compile, the continuation_criterion should've been attendance.length( It will not compile, the continuation_criterion should've been len( attendance ) It will not compile, the continuation_criterion should've been length( attendance The continuation_criterion is a short-hand form of attendance.length() The loop will display numbers from 0 to 30 (each on its own line) The loop will display numbers from 0 to 31 (each on its own line)
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- You are a manager of a Wally's Training Gym and you encourage your trainers to enroll new members. Input is the trainer's last name and the number of new enrollees. Output is the number of trainers who have enrolled members in each of three categories: 0-5 new members, 6-10 new members, and 11 to 15 new members. Write an application that allows the user to enter 15 Trainer's names and the number of new members they have enrolled into an array. Output is to display the number of trainers who are in each category. Use good programming techniques that you have learned throughout the course. Use appropriate variable names, use an array to store the names and number of new enrollees, and use prompts for the input and labels with the display. Turn in your Raptor file by clicking on the Start Here button in the upper right corner of your screen.You are a manager of a Wally's Training Gym and you encourage your trainers to enroll new members. Input is the trainer's last name and the number of new enrollees. Output is the number of trainers who have enrolled members in each of three categories: 0-5 new members, 6-10 new members, and 11 to 15 new members. Write an application that allows the user to enter 15 names and the number of new members they have enrolled into an array. Output is to display the number of trainers who are in each category. Use good programming techniques that you have learned throughout the course. Use appropriate variable names, use an array to store the names and number of new enrollees, and use prompts for the input and labels with the display.For this C++ called getArrayLength that counts up the number of elements in an array of integers that ends with the sentinel value, -999. The only parameter needed is the array. Finish the function below. This function will be used in solution for the next question. #include <iostream>using namespace std; /** int getArrayLength(int srcArray[])* @param: an array of integers that ends in the sentinel value -999* @returns: the length of the array not including the sentinel value.*/int getArrayLength(int srcArray[]){// ToDo: Fill-in the code to count the good values in the array.}int main() {int array[] = { 1, 3, 5, 7, 9, 11, -999 };cout << "The array has " << /* ToDo: call your function */ << " elements in it.\n";return 0;}
- The local Driver’s License Office has asked you to write a program that grades the written portion of the driver’s license exam. The exam has 20 multiple choice questions. Here are the correct answers: B D A A C A B A C D B C D A D C C B D A A student must correctly answer 15 of the 20 questions to pass the exam. Write a class named DriverExam that holds the correct answers to the exam in an array field. The class should also have an array field that holds the student’s answers. The class should have the following methods: • passed. Returns true if the student passed the exam, or false if the student failed • totalCorrect. Returns the total number of correctly answered questions • totalIncorrect. Returns the total number of incorrectly answered questions • questionsMissed. An int array containing the question numbers of the questions that the student missed Demonstrate the class in a complete program that asks the user to enter a student’s answers, and then displays the…an int variable k, an int array currentMembers that has been declared and initialized, an int variable nMembers that contains the number of elements in the array, an int variable memberID that has been initialized, and a bool variable isAMember, Write code that assigns true to isAMember if the value of memberID can be found in currentMembers, and that assigns false to isAMemberotherwise. Use only k, currentMembers, nMembers, and isAMember.1. Declare an array to save 4 Dog objects. The Dog class is provided below. Look into the Dog class and find what attributes are needed for a dog object. Then initialize five dogs with the following information: Lily, 5 years old Jacob, 2 years old Sugar, 8 years old Bush, 3 years old 2. Print out every dog using a for loop (use either regular for loop or for-each loop, your choice). But you may find when you print out, the name and age are not displayed. Why? 3. Fix this problem by implementing the toString method in the Dog class. Dog Class: public class Dog { private String name; private int age; public Dog(String name, int age) { this.name = name; this.age = age; } public void setName(String name) { this.name = name; } }
- Assuming that array1 and array2 are both arrays, why is it not possible to assign thecontents of array2 to array1 with the following statement?array1 = array2;This program ask the user to enter the scores of theory and practical tests which are stored as objects of Score class and displays the total score. The scores saved in array list. The scores for theory and practical must be between 0 and 100 (inclusive) and the total score is the sum of 60% of theory score and 40 % of practical score. A. Complete the definition of class Score to include the following members: 1. Two doubles theory and practical as instance variables and a count that count number of scores.The local Driver’s License Office has asked you to write a program that grades the written portion of the driver’s license exam. The exam has 10 multiple-choice questions. Here are the correct answers: 1. B 2. D 3. A 4. A 5. C 6. A 7. B 8. A 9. C 10. D A student must correctly answer 7 of the 10 questions to pass the exam. Write a class named DriverExam that holds the correct answers to the exam in an array field. The class should also have an array field that holds the student’s answers. The class should have the following methods: • passed. Returns true if the student passed the exam, or false if the student failed. • totalCorrect. Returns the total number of correctly answered questions. • totalIncorrect. Returns the total number of incorrectly answered questions. • questionsMissed. An int array containing the question numbers of the questions that the student missed, i.e. answered incorrectly. Test the class in a separate class, DriverTest , that asks the user to enter a student’s…
- Correct my code, it is supposed to return each index as a percentage of the original array public static double[] getPercentages(double[] data) { double sum = 0.0; double [] data = (6.0, 5.0, 4.0, 5.0); double[] percentages = getPercentages(data); for (double num : data) { sum += num; } double [] percentages = new double[data.length]; for (int i =0; i< data.length; i++) { percentages[i]= data / sum; } return percentages; }Java Program (Game: ATM machine) Use the Account class created in Programming Exercise 9.7 to simulate an ATM machine. Create 10 accounts in an array with id 0, 1, . . . , 9, and an initial balance of $100. The system prompts the user to enter an id. If the id is entered incorrectly, ask the user to enter a correct id. Once an id is accepted, the main menu is displayed as shown in the sample run. You can enter choice 1 for viewing the current balance, 2 for withdrawing money, 3 for depositing money, and 4 for exiting the main menu. Once you exit, the system will prompt for an id again. Thus, once the system starts, it will not stop.Write a program that declares three one-dimensional arrays named current, resistance, and voltage. Each should be declared in main() and be capable of holding 10 double-precision numbers. The numbers to be stored in current are 10.62, 14.89, 13.21, 16.55, 18.62, 9.47,6.58, 18.32, 12.15,and 3.98. The numbers to be stored in resistance are 4, 8.5, 6.0, 7.35, 9.0, 15.3, 3.0, 5.4, 2.9, and 4.8. Have your program pass these three arrays to a function called calcvolts(), which calculates the elements in the voltage array as the product of the equivalent elements in the current and resistance array: for example, Voltage[1] = current[1] * resistance[1] After calcvolts() has put values in the voltage array, display the values in the array from within main(). Write the calcvolts() function by using