Coordinate.java

package surprise_assignment;

import java.util.Arrays;
import java.util.Scanner;

public class Coordinate {

    private int myX;
    private int myY;
    private int[][] coordinates;

    public Coordinate() {
        coordinates = new int[10][2];
    }

    public void inputMyCoordinates() {
        Scanner sc = new Scanner(System.in);
        System.out.print("내 좌표 x값을 입력해 주세요: ");
        myX = sc.nextInt();
        System.out.print("내 좌표 y값을 입력해 주세요: ");
        myY = sc.nextInt();
        System.out.println("나의 좌표값은 (" + myX + ", " + myY + ") 입니다.");
        System.out.println();
    }

    public void inputRandomCoordinates() {
        int count = 0;
        Scanner sc = new Scanner(System.in);
        while (count < 10) {
            System.out.printf("%d/%d 번째 좌표값을 입력해 주세요.\n", count + 1, 10);
            System.out.print("임의의 좌표 x값을 입력해 주세요: ");
            int x = sc.nextInt();
            System.out.print("임의의 좌표 y값을 입력해 주세요: ");
            int y = sc.nextInt();
            System.out.println("입력하신 좌표값은 (" + x + ", " + y + ") 입니다.");
            System.out.println();

            boolean isDuplicate = checkDuplicateCoordinates(x, y, count);

            if (!isDuplicate) {
                coordinates[count][0] = x;
                coordinates[count][1] = y;
                count++;
            } else {
                System.out.println("중복된 좌표값이 있습니다. 다시 입력해 주세요.");
                System.out.println("내 좌표 값 : (" + myX + ", " + myY + ")");
                System.out.println("현재 입력한 좌표 목록  : " + Arrays.deepToString(coordinates) + "\n");
            }
        }
    }

    private boolean checkDuplicateCoordinates(int x, int y, int count) {
        if (x == myX && y == myY) {
            return true;
        } else {
            for (int i = 0; i < count; i++) {
                if (coordinates[i][0] == x && coordinates[i][1] == y) {
                    return true;
                }
            }
        }
        return false;
    }

    public void findClosestCoordinate() {
        double minDistance = Double.MAX_VALUE;
        int minIndex = 0;
        for (int i = 0; i < coordinates.length; i++) {
            double distance = getDistance(myX, myY, coordinates[i][0], coordinates[i][1]);
            System.out.printf("(%d, %d) => %.6f\n", coordinates[i][0], coordinates[i][1], distance);
            if (distance < minDistance) {
                minDistance = distance;
                minIndex = i;
            }
        }

        System.out.printf("가장 가까운 좌표: \n" +
          "(%d, %d) => %.6f\n", coordinates[minIndex][0], coordinates[minIndex][1], minDistance);
    }

    private double getDistance(int x1, int y1, int x2, int y2) {
        return Math.sqrt(Math.pow((x2 - x1), 2) + Math.pow((y2 - y1), 2));
    }

    public static void main(String[] args) {
        Coordinate coordinate = new Coordinate();
        coordinate.inputMyCoordinates();
        coordinate.inputRandomCoordinates();
        coordinate.findClosestCoordinate();
    }
}