
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:2. Design a program using pseudocode with two parallel arrays: a String array named
people and an String array named phoneNumbers. The program allows you to search
for a person's name in the people array. If the name is found, it displays that person's
phone number otherwise it should prompt the user the name was not found. The
program should use the binary search algorithm.
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- 5. Create an array that contents 10 integer elements, and let user randomly input 10 values and put into the array, Sorts array elements in ascending order, and then print out the array element.arrow_forwardThe Chat-A-While phone company provides service to six area codes and charges the per-minute rates for phone calls shown in Figure 6-25 (below). Write a program named ChatAWhile that stores the area codes and rates in parallel arrays and allows a user to enter an area code and the length of time for a call in minutes, and then display the total cost of the call. For example if the area code is in the array, such as 715, and the call length is 22 minutes, the output should be: Your phone call to area 715 costs $0.16 per minute For 22 minutes the total is $3.52 If the area code is not in the array, such as 111, the program should not accept a call length, and instead output Sorry - no calls allowed to area 111. Area Code Per-Minute Rate ($) 262 0.07 414 0.10 608 0.05 715 0.16 815 0.24 920 0.14 Figure 6-25 Per-minute phone call rates In order to prepend the $ to currency values, the program will need to use the CultureInfo.GetCultureInfo method. In order to do this,…arrow_forwardWrite a program called DeliveryCharges for the package delivery service in Exercise 4. The program should again use an array that holds the 10 zip codes of areas to which the company makes deliveries. Create a parallel array containing 10 delivery charges that differ for each zip code. Prompt a user to enter a zip code, and then display either a message indicating the price of delivery to that zip code or a message indicating that the company does not deliver to the requested zip code. In C# form please.arrow_forward
- Write a function that determines the average of the values in an array. In the main() function declare a floating point array with a length of 8 elements, and have the user enter the value of each element using a loop. The program should then call and pass the array to the function, then display the average.arrow_forwardQuestion 2: Single Dimensional Arrays please see image attached. The code has to be in Java using eclipse. Write comments in the code.arrow_forwardThere are 2 arrays, the first contains item numbers in inventory and the second parallel array contains the price of the items. The user will enter the item number they want to purchase, the program checks to see if it is a valid entry. If it is valid, it will tell the user the price of the item. If it is an invalid item, a message will display telling the user they entered an invalid item. Type up the code below, execute the program a few times.arrow_forward
- Suppose a teacher has five students who have taken four tests. The teacher uses the following grading scales to assign a letter grade to a student, based on the average of his or her four test scores. Test Score Letter Grade 90-100 80-89 70-79 60-69 0-59 A B C D F Create an application that uses an array of strings to hold the five student names, an array of five strings to hold each student's letter grades, and five arrays of four single precision numbers to hold each student's set of test scores.arrow_forwardI need to write a program named Search.java that uses a function called search_string to check whether a string exists in the array or not. 1- The array of strings is iterated using a for loop and the value at every index is compared with the value to be searched in the array. 2- A boolean variable is set if any array value matches with the string. 3- At the end of the loop, this boolean variable is checked to determine if the array contains the string. It may be necessary to import java.util.Arrays then use Arrays.toString, String equals(). Output should be as picture showsarrow_forward
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