public class PracticeQuiz2DArray {


	public static void main(String[] args) {
		//Create a 2D array that will analyze all elements in a 2D array of characters.
		//Write a method that will analyze this 2D array and return True if no element in the array
		//is adjacent to an element containing the same character.  Your array must carry over from 
		//the top to the bottom and left to right sides. You need only check up, down, left and right.
		//No diagonals.
		
		//ROY
		//GBR
		//OYG
		
		//RETURNS
		char[][] colors = {
				{'R', 'O', 'Y', 'G'},
				{'B', 'I', 'V', 'R'},
				{'O', 'Y', 'G', 'B'}, 
				{'I', 'V', 'R', 'O'},
				{'Y', 'G', 'B', 'I'},
				{'V', 'R', 'O', 'Y'},
				{'G', 'B', 'I', 'V'}
		};
//		char[][] colors = {
//				{'R', 'P', 'G', 'Y'},
//				{'G', 'B', 'R', 'G'},
//				{'O', 'Y', 'G', 'Y'}
//		};
//		char[][] colors = {
//				{'R', 'R', 'Y'},
//				{'G', 'B', 'R'},
//				{'O', 'Y', 'G'}
//		};
		
		System.out.println(hasSameAdjacent(colors));
		}
	
	public static boolean hasSameAdjacent(char[][] arr)
	{
		for(int r = 0; r < arr.length; r++)
			for(int c = 0; c < arr[0].length; c++)
			{
				//check to right
				if(c!=arr[0].length-1)
				{
					if(arr[r][c]==arr[r][c+1]) return true;
				}
				else if (arr[r][c]==arr[r][0]) return true;
				//check to left
				if(c!=0)
				{
					if(arr[r][c]==arr[r][c-1]) return true;
				}
				else if (arr[r][c]==arr[r][arr[0].length-1]) return true;
				//check above
				if(r!=0)
				{
					if(arr[r][c]==arr[r-1][c]) return true;
				}
				else if (arr[r][c]==arr[arr.length-1][c]) return true;
				//check below
				if(r!=arr.length-1) 
				{
					if(arr[r][c]==arr[r+1][c]) return true;
	
				}
				else if(arr[r][c]==arr[0][c])return true;
			}
		return false;
	}

}