Introduction to Java Programming编程题8.13<返回二维数组中最大值及下标>

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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;
}
}