Help with Do/While Loops

Question

The user enters a number between 1&15 and the system gives 1 up unitl that number, if a person enters a number that is less than 1 and greater than 15 I want the system to say, "Must Enter number between 1 & 15" then exit. My program just ignores the fact that I put in ex. 17 and treats it like it was 15, ANy help is appreciated
import java.io.*;
public class Nik
public static void main(String args[])
BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
try
//declare variables
String line;
int i;
boolean selection = true;
boolean wrong = false;
while (selection)
System.out.print("Enter a number between 1 and 15:");
line = keyboard.readLine();
try
i = Integer.parseInt(line);
for (int j=1; j<15; j++) System.out.print(j+" ");
System.out.println("");
catch(NumberFormatException e){selection = false;}
do
System.out.println("You Must enter a number between 1 and 15:");
try
for (int j=0; j>16; j++)System.out.print(j+"");
System.out.println("");
catch(NumberFormatException e) {wrong=true;}
}while(wrong);
}catch(IOException e){}

Answer 1

Your code doesn't check if the number is greater than 15 or less than 1. The loop seems a bit weird to me, this is how I would do it:
import java.io.*;
public class Nik
    public static void main(String args[])
        BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
        String line = "";
        boolean isValid = false;
        do
            System.out.println("Enter a number between 1 and 15:");
            try
                line = keyboard.readLine();
            } catch(IOException e) {}
            int yourInt = Integer.parseInt(line);
            if(yourInt > 0 && yourInt < 16)
                for(int j = 1; j < yourInt; j++)
                    System.out.print(j + " ");
                System.out.println();
                isValid = true;
            else
                isValid = false;
        } while(isValid);
        System.out.println("Must Enter number between 1 & 15");
}The most important part you were missing was:
if(yourInt > 0 && yourInt < 16)but also I don't think you need 2 loops to do this.