Question

Looking for some simple descriptive pseudocode for this short Java program (example italicized in bold directly below):

//Create public class count

public class Count
{

    public static void main(String args[])
    {
        int n = getInt("Please enter an integer value greater than or equal to 0");
      
        System.out.println("Should count down to 1");
        countDown(n);
      
        System.out.println();
        System.out.println("Should count up from 1");
        countUp(n);
    }
  
   
    private static void countUp(int n)
    {
// IMPLEMENT THIS RECURSIVE METHOD
       if(n==0)

           return;

           countUp(n-1);

           System.out.println(n);  
// END IMPLEMENTED RECURSIVE VALUE   
    }
   
    private static void countDown(int n)
    {
// IMPLEMENT THIS RECURSIVE METHOD
       if(n==0)

           return;

           System.out.println(n);

           countDown(n-1);
// END IMPLEMENTED RECURSIVE VALUE
    }
   
    private static int getInt(String rangePrompt)
    {
        Scanner input;
        int result = 10;        //default value is 10
        try
        {
            input = new Scanner(System.in);
            System.out.println(rangePrompt);
            result = input.nextInt();
          
        }
        catch(NumberFormatException e)
        {
            System.out.println("Could not convert input to an integer");
            System.out.println(e.getMessage());
            System.out.println("Will use 10 as the default value");
        }      
        catch(Exception e)
        {
            System.out.println("There was an error with System.in");
            System.out.println(e.getMessage());
            System.out.println("Will use 10 as the default value");
        }
        return result;
                                  
    }
}

Answer 1

CODE IN JAVA:

Count.java file:

import java.util.Scanner;
public class Count
{

public static void main(String args[])
{
int n = getInt("Please enter an integer value greater than or equal to 0");
  
System.out.println("Should count down to 1");
countDown(n);
  
System.out.println();
System.out.println("Should count up from 1");
countUp(n);
}
  
//descriptive method for countUp
private static void countUp(int n)
{
   for(int i=1;i<=n;i++) {
       System.out.println(i);
   }

}
//descriptive method for countDown
private static void countDown(int n)
{

   for(int i=n;i>=1;i--) {
       System.out.println(i);
   }

}

private static int getInt(String rangePrompt)
{
Scanner input;
int result = 10; //default value is 10
try
{
input = new Scanner(System.in);
System.out.println(rangePrompt);
result = input.nextInt();
  
}
catch(NumberFormatException e)
{
System.out.println("Could not convert input to an integer");
System.out.println(e.getMessage());
System.out.println("Will use 10 as the default value");
}
catch(Exception e)
{
System.out.println("There was an error with System.in");
System.out.println(e.getMessage());
System.out.println("Will use 10 as the default value");
}
return result;
  
}
}

OUTPUT:

Problems Javadoc Declaration Console Coverage <terminated> Count Java Application] C:\Program FilesJavajre1.8.0 171\bin\javaw.exe (Oct 7, 2019, 1:14:48 AM) Please enter an integer value greater than or equal to 0 10 should count down to 1 10 9 7 6 4 3 2 1 Should count up from 1 1 2 3 4 6 7 9 10