Java program help I need help?

Question

creat an application that prompts for an integer using the scanner class. write an input validtaion loop to allow only integers to be entered in the range of 1-10(inclusive). The program uses another loop to diplay the numbers counting from the input value 1. The output is to the console window . name the file CountDown

Answer 1

I guess you want to print the numbers in reverse order. Try this

import java.util.*;

public class CountDown
{
public static void main(String ar[])
{
Scanner sc = new Scanner(System.in);
boolean check = true;
int i=0;
while(check)
{
System.out.print("Enter a integer(1-10) :");
i = sc.nextInt();
if(i<1 || i>10)
System.out.println("Integer "+i+" is not between 1-10");
else
check = false;
}
System.out.println("Starting Count down");
for(int j=i;j>=1;j--)
System.out.println(j);
}
}

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Answer 2

I am assume you have some java knowledge. This is really easy to do:

To implement the Scanner class to accept user input do the following:

Scanner numberInput = new Scanner(System.in);

int currentNumber = numberInput.nextInt(); //this is the number the user enters

if (currentNumber <= 10 && currentNumber >= 1)
{
//valid number loop
for (int i =currentNumber; i >0; i--)
System.out.println(i);
}
else
{
//not valid number
}

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