初学Java 二维数组找出最近的两个点

import java.util.Scanner;

public class FindNearestPoints {
  public static void main(String[] args) {
      Scanner input = new Scanner(System.in);
      System.out.print("Enter the number of points: ");
      int numberOfpoints = input.nextInt();
      
      double[][] points = new double[numberOfpoints][2];
      System.out.print("Enter " + numberOfpoints + " points: ");
      for (int i = 0; i < points.length; i++) {
          points[i][0] = input.nextDouble();
          points[i][1] = input.nextDouble();
      }
      
      int p1 = 0, p2 = 1;
      double shortesDistance = distance(points[p1][0], points[p1][1], points[p2][0], points[p2][1]);
      for(int i = 0; i < points.length; i++) {
          for(int j=i+1; j<points.length; j++) {
              double distance = distance(points[i][0], points[i][1], points[j][0], points[j][1]); 
              
              if (shortesDistance > distance) {
                  p1 = i;
                  p2 = j;
                  shortesDistance = distance;
              }
          }
      }
      System.out.println("The closest tow points are " + "("+points[p1][0]+", "+points[p1][1]+")and("+points[p2][0]+", "+points[p2][1]+")");
      
  }
  public static double distance(
          double x1, double y1, double x2, double y2) {
      return Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
  }
}