编写程序找出在三维空间上距离最近的两个点，使用一个二维数组存放点的坐标。 要求如下： （1）使用下面的方法头读取用户输入的点的坐标，要求输入6个点； public static double[][] getArray(int n1,int n2)； （2）使用下面的方法头计算两个点之间的距离。 public static double distance(double x1, double y1, double z1, double x2, double y2, double z2) （3）使用下面的方法头计算最短距离的两个点及返回最短距离。 public static double getShortestDistance(double[][] points,double[][] shortDistancePoint) 说明： double[][] points 存放三维空间上若干个点； double[][] shortDistancePoint存放最短距离的两个点； （4）使用下面的方法头打印输出最短距离的两个点。 public static void printShortestDistance(double[][] shortDistancePoint)

好的，这是一个关于计算三维空间上最近距离的问题，下面是我的建议：

import java.util.Scanner;

public class ShortestDistance {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        double[][] points = getArray(6, 3);
        double[][] shortDistancePoint = new double[2][3];
        double shortestDistance = getShortestDistance(points, shortDistancePoint);
        System.out.println("The shortest distance is " + shortestDistance);
        printShortestDistance(shortDistancePoint);
    }

    public static double[][] getArray(int n1, int n2) {
        Scanner input = new Scanner(System.in);
        double[][] array = new double[n1][n2];
        System.out.println("Enter " + n1 + " points with " + n2 + " coordinates each:");
        for (int i = 0; i < n1; i++) {
            for (int j = 0; j < n2; j++) {
                array[i][j] = input.nextDouble();
            }
        }
        return array;
    }

    public static double distance(double x1, double y1, double z1, double x2, double y2, double z2) {
        return Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2) + Math.pow(z2 - z1, 2));
    }

    public static double getShortestDistance(double[][] points, double[][] shortDistancePoint) {
        double shortestDistance = Double.MAX_VALUE;
        int n = points.length;
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j < n; j++) {
                double d = distance(points[i][0], points[i][1], points[i][2], points[j][0], points[j][1], points[j][2]);
                if (d < shortestDistance) {
                    shortestDistance = d;
                    shortDistancePoint[0] = points[i];
                    shortDistancePoint[1] = points[j];
                }
            }
        }
        return shortestDistance;
    }

    public static void printShortestDistance(double[][] shortDistancePoint) {
        System.out.println("The closest two points are (" + shortDistancePoint[0][0] + ", " + shortDistancePoint[0][1] + ", " + shortDistancePoint[0][2] + ") and (" + shortDistancePoint[1][0] + ", " + shortDistancePoint[1][1] + ", " + shortDistancePoint[1][2] + ")");
    }
}

该程序首先使用 `getArray` 方法读取用户输入的点的坐标，然后使用 `getShortestDistance` 方法计算最短距离的两个点及返回最短距离，接着使用 `printShortestDistance` 方法打印输出最短距离的两个点。其中，`distance` 方法用于计算两个点之间的距离。

注意，该程序假设用户输入的点的数量是 6，每个点的坐标是三维的。如果需要适应其他数量或维度的点，请相应地修改 `getArray` 方法中的参数。