Write a Java program called E2b that will read from Stdln an integer, n, and will set the size of a 2D array to have n rows and n columns. The values in this n x n 2D array must be read from Stdln and the array must be filled in row-major order. For example, if the following input stream was read: 4 12 34 4321 9876 5764 The 2D array created would be: 1 2 4 4 1 8 7 6 5 7 4 Include in the program above, code that would print the values in the 2D array beginning with the value in the last row, last column and ending with the value in the Oth row, Oth column, traversing the columns from bottom to top, printing n values in each row of the output. The values in the array do not change. You are simply printing them in a unique order. For example, for the array given above, the output would be: 4 7 3 7 8. 2 4 1 3. 3. 00 4+

Write a java program named EmployeeRecords that simulates a company’s HR system. Theprogram reads a list of employee ids, names, and salaries from a file a3q1.txt, and stores theinformation in parallel array lists ids, names, and salaries.Sample input (a3q1.txt)132 Dumbledore 90000465 Lupin 60000443 McGonagall 75000124 Snape 70000337 Sprout 62000Your program will prompt the user to make a selection: retrieve an employee record by employeeID or display a salary report.You must include 2 methods:●くろまるretrieveEmployeeRecord(...) that accepts the array list of employee IDs and anemployee ID to find, and returns the index of the entry.

Write a program that reads a list of words. Then, the program outputs those words and their frequencies. The input begins with an integer indicating the number of words that follow. Assume that the list will always contain fewer than 20 words. Ex: If the input is: 5 hey hi Mark hi mark the output is: hey 1 hi 2 Mark 1 hi 2 mark 1 Hint: Use two arrays, one array for the strings and one array for the frequencies. 453086.3222312.qx3zqy7 LAB ACTIVITY HN356 10.16.1: LAB: Word frequencies 1 import java.util.Scanner; 3 public class LabProgram { 2 public static void main(String[] args) { Type your code here. */ LabProgram.java 0/10 Load default template...

Write a python program to print the prime numbers existing in an array. For instance, if A = [4, 7, 12, 3, 9], the output should be 7, 3.

Write a Java program to prompt the user to enter an integer n between 1 and 20 both inclusive and (error check is required), then create an array arr of size n. The program then will fill up the integer array with powers of 2, so first element will be 20 , second element will be 2^1 , third element will be 2^2 , forth element will be 2^3 .......... and the last element will be 2n^-1.