Create an manages a 2d array of ints

Assignment Help Computer Engineering

Reference no: EM132175589

Util2D creates an manages a 2d array of ints. It has a constructor that takes a 2d array as a parameter and assigns it to the instance variable. You write the whole class

Provide the constructor

Provide these methods

getSmallest() Gets the smallest integer in the array

numberOfEvenInColumn(int column) Gets the number of even integers in the specified column. Remember both positive and negative numbers can be even.

last() Gets the element in the last column of the last row

contains(int target) Returns true if the target is in the array, otherwise false.

Use the following file:

Util2DTester.java

/** * Tester for Util2D class. * * @author Kathleen O'Brien */ public class Util2DTester { public static void main(String[] args) { int[][] numbers = { {-5, 8, 6, 3, 11}, {3, -6, -2, 5, -9}, {1, 2, 5, 7, 6} }; Util2D util = new Util2D(numbers); System.out.println("Smallest: " + util.getSmallest()); System.out.println("Expected: -9"); System.out.println("Even in column#1: " + util.numberOfEvenInColumn(1)); System.out.println("Expected: 3"); System.out.println("Even in column#0: " + util.numberOfEvenInColumn(0)); System.out.println("Expected: 0"); System.out.println("Last: " + util.last()); System.out.println("Expected: 6"); System.out.println("Contains: " + util.contains(8)); System.out.println("Expected: true"); System.out.println("Contains: " + util.contains(15)); System.out.println("Expected: false"); int[][] numbers2 = { {5, 3, 2, 4}, {6, 1, 7, 8} }; util = new Util2D(numbers2); System.out.println("Smallest: " + util.getSmallest()); System.out.println("Expected: 1"); System.out.println("Last: " + util.last()); System.out.println("Expected: 8"); } }

Reference no: EM132175589

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