Дз 3.Задача 1

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

public class Main {
 
 static Scanner scanner = new Scanner (System.in);
 
 public static void main(String[] args) {
  int a = scanner.nextInt();
  int arry[] = new int[a];
  for (int **0; i<arry.length; i++){
   arry[i] = scanner.nextInt();
  }
  sum(arry);
  System.out.println();
  reversalArry(arry);
  System.out.println();
  arithmeticMean(arry);
  System.out.println();
  replacementMinMax(arry);
  System.out.println();
  replacementMinMax(arry);
  System.out.println();
  sortBuble(arry);
 }
 
 //задание 1.1
 public static int sum(int [] arr){
  int sum=0;
  for(int i = 0; i<arr.length; i++){
   sum = sum + arr[i];
  }
  System.out.println(sum);
  return sum;
 }
 
 //задание 1.2
 public static void reversalArry(int arr[]){
  for(int i = arr.length - 1; i>=0; i--){
   System.out.println(i+1);
  }
 }
 
 //задание 1.3
 public static int arithmeticMean(int [] arr){
  int sum=0;
  int arM=0;
  for (int **0; i<arr.length; i++){
   sum = sum+arr[i];
   arM = sum/arr.length;
  }
  System.out.println(arM);
  return arM;
 }
 
 //задание 1.4
 public static void replacementMinMax (int [] arry){
    int min = arry[0];
    int imin=0;
    int max = arry[0];
    int imax=0;
    for(int **1; i<arry.length; i++){
      if(arry[i]<min){
        min = arry[i];
        imin=i;
      }
        for(int j=1; j<arry.length; j++){
          if(arry[j]>max){
           max=arry[j];
           imax=j;
          }
        }
    }
   System.out.println(min+" "+max);
   arry[imin]=max;
   arry[imax]=min;
   System.out.println(Arrays.toString(arry));
 }
 //задание 1.5
 public static void sortBuble(int []arry){
  int temp;
  for(int i = arry.length -1; i>0; i--){
   for(int j = 0; j < i; j++){
    if(arry[j] > arry[j+1]){
    temp = arry[j];
    arry[j] = arry[j+1];
    arry[j+1]=temp;
    }
   }
  }
 System.out.println(Arrays.toString(arry));
 }
}