assignment2/src/assignment2/multiDim.java

/*
Jacob John
*/

package assignment2;

import java.util.Scanner;

public class multiDim {

    public static void main(String[] args) {
        int i, j;
        double t;

        // Declaring 2-D array with 4 rows
        int arr[][] = new int[4][];

        // input for each batch
        Scanner sc = new Scanner(System.in);
        for (i = 0; i < arr.length; i++) {
            System.out.print("Enter number of students for batch " + (i + 1) + ": ");
            t = sc.nextDouble();
            arr[i] = new int[(int) Math.ceil(t / 4)];
            for (j = 0; j < arr[i].length; j++) {
                if (t >= 4)
                    arr[i][j] = 4;
                else
                    arr[i][j] = (int) t;
                t = t - 4;
            }
        }
        sc.close();

        // Displaying the values of 2D Jagged array
        int cfour = 0;
        System.out.println("Contents of 2D Jagged Array");
        for (i = 0; i < arr.length; i++) {
            for (j = 0; j < arr[i].length; j++) {
                System.out.print(arr[i][j] + " ");
                if (arr[i][j] == 4)
                    cfour++;
            }
            System.out.println();
        }

        System.out.println("Number of tutors with 4 students are: " + cfour);
    }
}