Introduction to Java Programming编程题8.13<返回二维数组中最大值及下标>
2015-08-24 16:51
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/* Enter the number of rows and columns of the array: 3 4 Enter the array: 11 33.5 88.1 4 0 -2.2 -10.1 -20 1.11 2.22 3.3 4.4 The location of the largest element is 88.1 at (0, 2) */ import java.util.Scanner; public class FindMaxValue { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("Enter the number of rows and columns of the array: "); final int ROW = input.nextInt(); final int COLUMN = input.nextInt(); double[][] matrix = new double[ROW][COLUMN]; System.out.println("Enter the array: "); for (int i = 0, j; i < matrix.length; i++) for (j = 0; j < matrix[i].length; j++) matrix[i][j] = input.nextDouble(); int[] max = findMax(matrix); System.out.println("The location of the largest element is " + matrix[max[0]][max[1]] + " at (" + max[0] + ", " + max[1] + ")"); } public static int[] findMax(double[][] matrix) { int[] max = new int[2]; int k = 0; double maxValue = matrix[k][k]; for (int i = 0, j; i < matrix.length; i++) { for (j = 0; j < matrix[i].length - 1; j++) if (maxValue < matrix[i][j + 1]) { max[k] = i; max[k + 1] = j + 1; } } return max; } }
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