write those 3 questions (class)

Here is an example that accepts the integers from the user and find the smallest and second smallest number from the array. It also reverses the array of numbers.

import java.util.*;

public class Smallest {
public static void minE(int numbers[]){
     int smallest = numbers[0];
     int secondSmallest = numbers[1];

     for (int i = 1; i < numbers.length; i++) {
        if (numbers[i] < smallest) {
            secondSmallest = smallest;
            smallest = numbers[i];
        }
     }
     System.out.println("Smallest value: " + smallest); 
     System.out.println("Second Smallest value: " + secondSmallest);
    }
    public static void rev(int numbers[]){
        System.out.println("Numbers in reverse order: ");
        for (int i = numbers.length-1; i >=0; i--) {
        System.out.println(numbers[i]);
      }
    }
    public static void main(String[] args) {
    Scanner kybd = new Scanner(System.in);
    int[] numbers = new int[5];

    System.out.println("Enter 5 integers: ");
    for (int i = 0; i < numbers.length; i++) {
        numbers[i] = kybd.nextInt();
    }
    minE(numbers);
    rev(numbers);
  }
}