Question

Write a program that accepts three numbers from the user and displays them either in "Increasing Order" or in "Decreasing Order" as per the user's choice. 

Choice 1: Ascending order
Choice 2: Descending order
Sample Inputs: 394, 475, 296
Choice: 2 
Sample Output:
First number : 475
Second number : 394
Third number : 296
The numbers are in decreasing order. 

Answer 1

import java.util.*;

public class Q10
{
    public static void main(String args[])
    {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter first number: ");
        int a = in.nextInt();
        System.out.print("Enter second number: ");
        int b = in.nextInt();
        System.out.print("Enter third number: ");
        int c = in.nextInt();
        int max = 0, mid = 0, min = 0; 
        
        System.out.println("Choice 1: Ascending Order");
        System.out.println("Choice 2: Descending Order");
        System.out.print("Enter your choice: ");
        int ch = in.nextInt();
        
        if(ch != 1 && ch != 2)  {
            System.out.println("Wrong choice.");
        }
        else {
            if (a > b && a > c)  {
                max = a;
                if (b > c) {
                    mid = b;
                    min = c;
                }
                else {
                    mid = c;
                    min = b;
                }
            }
            if (b > a && b > c)  {
                max = b;
                if (a > c) {
                    mid = a;
                    min = c;
                }
                else {
                    mid = c;
                    min = a;
                }
            }
            if (c > a && c > b)  {
                max = c;
                if (a > b) {
                    mid = a;
                    min = b;
                }
                else {
                    mid = b;
                    min = a;
                }
            } 
        }
        if (ch == 1) {
            System.out.println("First number: " + min);
            System.out.println("Second number: " + mid);
            System.out.println("Third number: " + max);
            System.out.println("The numbers are in increasing order");
        }
        else    {
            System.out.println("First number: " + max);
            System.out.println("Second number: " + mid);
            System.out.println("Third number: " + min);
            System.out.println("The numbers are in decreasing order");
        }       
    }
}