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Sections 6.10 and 6.11
*6.17 (Display matrix of 0s and 1s) Write a method that displays an n-by-n matrix using the following header:
public static void printMatrix(int n)
Each element is 0 or 1, which is generated randomly. Write a test
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Introduction to Java Programming and Data Structures, Comprehensive Version Plus MyProgrammingLab with Pearson EText -- Access Card Package
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- Shift Right k Cells (Use Python) Consider an array named source. Write a method/function named shifRight( source, k) that shifts all the elements of the source array to the right by 'k' positions. You must execute the method by passing an array and number of cells to be shifted. After calling the method, print the array to show whether the elements have been shifted properly. Example: source=[10,20,30,40,50,60] shiftRight(source,3) After calling shiftRight(source,3), printing the array should give the output as: [ 0,0,0,10,20,30 ]arrow_forwardPlease explain more Exercise #3 Declare and instantiate an array of 40 cars using the Car Name the array dealerCars. Write Java statements to add three cars to the dealerCars Make a hole at the beginning of the dealerCars array by moving the cars in the array up by one position. Add another car to the beginning of the array. Write a for loop to display all the cars in the dealerCars Add any necessary methods to the Car class.arrow_forward2. Rotate Left k cells Use Python Consider an array named source. Write a method/function named rotateLeft( source, k) that rotates all the elements of the source array to the left by 'k' positions. You must execute the method by passing an array and number of cells to be shifted. After calling the method, print the array to show whether the elements have been shifted properly. Example: source=[10,20,30,40,50,60] rotateLeft(source,3) After calling rotateLeft(source,3), printing the array should give the output as: [ 40, 50, 60, 10, 20, 30]arrow_forward
- For Beginners Java: Write a program that ask the user to enter a list of positive scores until the user enters a negative score to terminate the input. You need to store these scores in an array. You can assume the maximum number of scores the user may enter is 50. However, you need to keep track of the actual number of scores entered. Write 2 methods: 1. calculateAverage(): this method takes the list of scores and return the average score. 2. countPerfectScores(): this method takes the list of scores and return the number of perfect scores (100). The main program reads the input and calls these methods and print the results. Please make sure you write a comment line to document what your method does.arrow_forwardواجب جافا 1.pdf Introduction to Programming Lab Homework 1 1. Use method overriding to write two methods called printArray. On should take an int array and the other should take a double array. Both should print the array they are given as an argument. Sample code int [] x = {9, 3, 5, 1, 5, 10}; int [] y = {26.12, 72.1, 10, 4.20}; Sample output 93515 10 26.12 72.1 10.0 4.2 2. write two method called findindex and findLastIndex that search for a number in an array. they should take an int array and an int as parameters. findIndex should return the index of the first instance of the number in the array. findLastIndex should return the index of the last instance of the number in the array. They both should return -1 if the number is not found. Do not use any library methods. Sample code int a[] = {10,50,30,40,50}; int x = findIndex(a,50); System.out.println (x); Sample output 1 int a[] = {10,50,30,40,50}; int x = findLastIndex (a,50); System.out.println(x); int a[] = {10,50,30,40,50}; int…arrow_forward. DO NOT REJECT THE QUESTION. ---- Write a Java program that asks the user to enter an array of integers in the main The program will ask the user for the number of integer elements to be put in the array, and then ask the user for each element of the array. The program then calls a method named isSorted() that accepts an array of integers and returns true if the list is in sorted (increasing) order and false otherwise. For example, if arrays named arr1 and arr2 store [10, 20, 30, 41, 56] and [2, 5, 3, 12, 10] respectively, the calls sorted(arr1) and isSorted(arr2) should return true and false respectively. Assume the array has at least one integer element. A one-element array is considered to be sorted.arrow_forward
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