Java - 配列の最小値と最大値を見つける

ここで私のエラーが見つかりませんか？

import java.util.Scanner;
    class Code {
            public static void main (String[] args) {
                    Scanner a = new Scanner (System.in);
                    System.out.println("Please, Enter Array Size : ");
                    int size = a.nextInt();
                    double[] arr = new double[size];
                    System.out.println("Enter Array elements : ");
                    for (int i = 0; i < size; i++) {
                            arr[i] = a.nextDouble();
                    }
                    int max = arr[0];
                    int min = arr[0];
                    for (int i = 1; i < size; i++) {
                            if (max < arr[i]) {
                                    max = arr[i];
                            }
                            if (min > arr[i]) {
                                    min = arr[i];
                            }
                    }
                    System.out.println("maximum is : " +max);
                    System.out.println("minimum is : " +min);
            }
    }