public class TwinArray {

	private int [][] numbers;

	public TwinArray(int[][] nums){
		numbers = new int [nums.length][nums[0].length]; //because you need to go through one row to
															//know how many columns are in it
	for(int row = 0; row < nums.length;row++){
		for(int col = 0; col < nums[row].length;col++){
		numbers[row][col] = nums[row][col];
		}
	}
	}
// END CONSTRUCTOR
//=================================================================================
	public int getLength(){
		return numbers[0].length;
	}


//====================================================================

public int getTotal(){
	int sum = 0;

	for(int row = 0;row < numbers.length;row++){
		for(int col = 0; col < numbers[row].length;col++){
			sum = sum + numbers[row][col];
		}
	}
	return sum;
}

//=================================================================================
	public double getAverage(){
		int sum = 0;
		double avg =0;

		for(int row = 0; row < numbers.length;row++){
			for(int col = 0; col < numbers[row].length;col++){
				sum = sum + numbers[row][col];
				avg = sum / numbers[0].length;
			}
		}
		return avg;
	}

//===========================================================================
	 //The second argument should be the subscript of a row in the array.
		//The method should return the total of the values in the specified row.

	public int  getRowTotal(int num){
		int row = num;
		int totalRow = 0;

		for(int i = 0; i < numbers[row].length; i++){
				totalRow = totalRow + numbers[row][i];
			}
		return totalRow;
		}