Java Shell Sort but make it read the data 12, 34, 54, 2, 3 from a file not an array

Java program In main method: Create 2-D Array, called m: the row size of array m is 15 ask user to input column size of array m fill all array elements as double numbers in the range of (7.0, 17.0) by using random object create 2-d array, called double [][]md = {{1,1,1},{2,0,1},{4,7,4}}; pass the above array m and md to call the following two methods MaxCol(m); MaxCol(md); System.out.println (“the average of array m is: ” + returnLast3RowAvg(m)); System.out.println (“the average of array md is: ” + returnLast3RowAvg(md)); Print out the largest column sum, and the average of the last 3 rows of array m and md. In MaxCol(double[][]array) method, find and print the largest column sum in the array. In returnLast3RowAvg(double[][]array) method, find the average of the elements in the last 3 rows in the array and return this average value.

public static void reverse(ArrayList<Integer> alist){}public static ArrayList<Integer> reverseList(ArrayList<Integer> alist){}   How to use these two headers method and a main method to create the output of  [1,2,3] [3,2,1]

Fill in the blanks of initialization of std::array array of int type, an_int_array with content {1, 2, 3). stà Then fill in the blanks in such a way that the following for loop simply prints 1, 2, 3, to standard output. for(int i = 0; i an_int_array {1, 2, 3); • you must assume using namespace std; has not being used assume the regular for loop pattern in the question above

int arr[] = {-2, -4, 8, 4, 3, 3, -9};In Java with this given this array, how would this version of Divide and Conqueror be implemented in this case, specifically?

Given the Array declaration below, determine the output: int T[8] = {2, 3, 7, 9, -1, 2, 4, 5};   int x = 5;  cout << T[x-2] / T[12-2*x];    int y = -3; cout << pow(T[y+4],T[3-y]);

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Declaration for an integer 2-D array X with the size 3 rows and 4 columns in C is int X(3) (4); double X=[3] [4]; integer X[3] [4]; int X[3] [4];