RUN ERROR IN CB IDE OTHERWISE IT WORKS FINE

#1 
	Scanner sc = new Scanner(System.in);
	int m = 0;
	if (sc.hasNext()) {
		m = sc.nextInt();
	}
	int n = 0;
	if (sc.hasNext()) {
		n = sc.nextInt();
	}
	int[][] a = new int[m][n];
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			a[i][j] = sc.nextInt();
		}
	}
	int top, bottom, left, right, count, direction;
	top = 0;
	bottom = a.length - 1;
	left = 0;
	right = a[top].length - 1;
	count = (bottom + 1) * (right + 1);
	direction = 1;

	while (left <= right && top <= bottom) {
		if (count > 0) {
			if (direction == 1) {
				for (int i = left; i <= right; i++) {
					System.out.print(a[top][i] + ", ");
					count--;
				}
				direction = 2;
				top++;
			}
		}
		if (count > 0) {
			if (direction == 2) {
				for (int i = top; i <= bottom; i++) {
					System.out.print(a[i][right] + ", ");
					count--;
				}
				direction = 3;
				right--;
			}
		}
		if (count > 0) {
			if (direction == 3) {
				for (int i = right; i >= left; i--) {
					System.out.print(a[bottom][i] + ", ");
					count--;
				}
				direction = 4;
				bottom--;
			}
		}
		if (count > 0) {
			if (direction == 4) {
				for (int i = bottom; i >= top; i--) {
					System.out.print(a[i][left] + ", ");
					count--;
				}
				direction = 1;
				left++;
			} 
		}

	}
	System.out.println("END");
#2

your code doesn’t work for cases when n!=m