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- Lab Activity for the students: Exercise 5: Write a program that asks the user to input 8 numbers and save them in a 2D array with 4 rows and 2 columns. The program finds the sum of all elements and prints the array in reverse order. (1 Mark ) Example : If the inputs are 12, 7, 23, 86, 40, 64, 97, 55. Then, the program will print: 55 97 64 40 86 23 7 12 Sum = 384arrow_forward1.) How to outpit an element of an array? 2.) How to put element to an array? 3.) How to use array with a looping structur?arrow_forwardLottery Number Generator: 2.) 2.) Design a program that generates a 7-digit lottery number. The program should have an INTEGER array with 7 elements. Write a loop that steps through the array, randomly generating a number in the range of 0 through 9 for each element. Then write another loop that displays the contents of the array. All programming is in Python.arrow_forward
- Part 1: Randomizing an Array In this problem you will write a program that will randomize the elements of an array created by the user. 1. Prompt the user to enter an integer, then asks the user to enter that many values. Store these values in an array and print the array. Then re-shuffle the array elements so randomly. Do not just randomize the order in which they are printed; actually change the way they are stored in the array. Do not create a second array; just rearrange the elements within the array you have. (Hint: Swap elements that need to change places.) When the elements have been randomized, print the array again. 2. Create another version of your program that applies the following modification to the randomization process: elements that have been already swapped should not be swapped again. Example: if element 1 was swapped with element 10, when the 10 th element is reached it should not be swapped again. Yet if the 2 nd element is reached it can be swapped with the 10o the…arrow_forwardSimple try-catch-finally Program This lab is a simple program that demonstrates how try-catch-finally works. You will notice the output when you enter incorrect input (for example, enter an incorrect index or an alpha character instead of an integer). Type up the code, execute and submit the results ONLY. 1. Enter a valid array index 2. Enter an invalid array index 3. Enter a letter instead of an integer - NOTE: Using the general error will show you the type of exception was caught, and you can then update your code to catch that type of error. 4. Try putting the "Exception e" before the IndexOutOfBounds Exception eob what happens and are you able to run the code - what happens? CODE: import java.util.Scanner; public class TryCatchFinally { public static void main(String[] args) { // Instantiate a scanner Scanner input = new Scanner(System.in); } } // Create an array with 4 values int an IntArr[] = {10, 15, 26, 99); try { System.out.println("Enter the index to see the number: "); int…arrow_forward1) Given row array vals of unknown size of 2 or greater, write an expression that yields a new array containing all elements except the first. For example, if vals = [10, 20, 30, 40], the expression would yield [20, 30, 40]. vals Check Show answer 2) Write an expression that results in a row array vals shifted to the right. For example, if vals = [1, 2, 3, ....., n-1, n], then a right shift will result in [n,1,2,3,.....n-1]. Check Show answer Incorrect vals(???)arrow_forward
- (1) Prompt the user to enter five numbers, being five people's weights. Store the numbers in an array of doubles. Output the array's numbers on one line, each number followed by one space. Ex: Enter weight 1: 236.0 Enter weight 2: 89.5 Enter weight 3: 142.0 Enter weight 4: 166.3 Enter weight 5: 93.0 You entered: 236.0 89.5 142.0 166.3 93.0 (2) Output the total weight, by summing the array's elements. (3) Output the average of the array's elements, with 2 decimal places. (4) Output the max array element. Ex: Enter weight 1: 236.0 Enter weight 2: 89.5 Enter weight 3: 142.0 Enter weight 4: 166.3 Enter weight 5: 93.0 You entered: 236.0 89.5 142.0 166.3 93.0 Total weight: 726.8 Average weight: 145.36 Max weight: 236 Code: import java.util.Scanner; public class PeopleWeights { public static void main(String[] args) { /* Type your code here. */ }}arrow_forwardProblem2 Write a program that display the position of a given element in an array. You should print the index (i.e. the position) of the element. If the element appears more than one time than you should print all its positions. The size of the array should be entered by the user. If the element does not occur then you should display element not found. Sample1: Enter the size of the array: 5 Enter an array of size 5: 44 5 13 44 67 Enter the element to find: 44 44 is found at position 44 is found at position 44 occurs 2 time(s) Sample2: Enter the size of the array: 4 Enter an array of size 4: 12 150 17 20 Enter the element: 18 18 is not foundarrow_forwardYou can copy all elements of one array into one another with an assignment statement. True or Falsearrow_forward
- python: numpy def purchases(transactions): """ QUESTION 7 - A high-end store is trying to evaluate the total amount that customer's spend per transaction. They want customers to spend anywhere between $130 and $150 on average. - You need to determine whether the average number spent on each transaction per month is above, between, or below the desired amount. - Transactions is a numpy array containing a date, total amount earned each month, and total number of transactions each month. - Above: month's average amount spent per transaction > 150 - Within Range: 150 >= month's average amount spent per transaction >= 130 - Below: month's average amount spent per transaction < 130 - Return a numpy array with "Above", "Within Range" and "Below" for the average amount spent per transaction per month - THIS MUST BE DONE IN ONE LINE HINT: use np.where() and convert the type of each column to float Args: transactions…arrow_forwardpart a- 2point) for 3 students find the average of a student by asking him how many grades do you have. The answer to this question, determine the size of the array(list of grades) and then ask the user to enter grades(the number of the grades is equal to the size of the array) then calculate the average for each student. Hence, you will calculate 3 averages. to calculate the average, use the array accumulator. Also when you get each grade validate it. validation for grade means that you check whether a grade is between 0 and 100. if the grade is negative or a grade is more than 100 then it is not valid and you have to ask the user to enter a grade again. Part b- 1 point) Find the maximum and minimum grades for each student. Part c- 1 point) Print the sorted list of the grades for each student. example: if grades user entered are: 60 78 98 23 45 then sorted list is:23 45 60 78 98 (Array not vector)arrow_forwardFor the array ADT, the operations associated with the type array are: insert a value in the array, delete a value from the array, and test whether a value is in the array or not. 1.true 2.falsearrow_forward
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