已知有一个NXN的矩阵,
要求:
1、查找该矩阵中最大值的位置, 并输出该位置 (1分)
2、求该矩阵的对角线之积,并输出该值 (2分)
3、实现该矩阵的转置,并输出转置后的矩阵 (2分)
import java.util.Scanner;
public class try1 {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入矩阵的大小(行列)");
int M = scanner.nextInt();
int N = scanner.nextInt();
int num[][] = new int[M][N];
int i, j;
int k = 1;
int max, maxi, maxj;
System.out.println("请输入矩阵内"+M * N+"个数");
for (i = 0; i < M; i++) {
for (j = 0; j < N; j++)
num[i][j] = scanner.nextInt();
}
max = num[0][0];
maxi = maxj = 0;
for (i = 0; i < M; i++) {
for (j = 0; j < N; j++) {
if (i==j){
k *= num[i][j];
}
if (num[i][j] > max) {
max = num[i][j];
maxi = i;
maxj = j;
}
}
}
System.out.println("最大值为" + max + "位置:第" + (maxi+1) + "行第" + (maxj+1)+ "列");
System.out.println("对角线乘积为" + k);
System.out.println("转置后的矩阵为");
for (i = 0; i < M; i++) {
for (j = 0; j < N; j++) {
System.out.print(num[j][i]+"\t");
}
System.out.println();
}
}
}