Welll you can never break out of the the
while loop because you enter it when user inputs
"yes" however inside it you never actually ask the user if they would like to continue
java
while (turn.equalsIgnoreCase("yes"))
{
System.out.print("Enter an integer (or nothing to stop): ");
String number = keybd.nextLine();
}
if(turn.equalsIgnoreCase("no"))
System.out.println();
should have something like
java
while (turn.equalsIgnoreCase("yes"))
{
System.out.print("Enter an integer (or nothing to stop): ");
String number = keybd.nextLine();
//check if user wishes to continue
System.out.println("\nDo you wish to continue (yes / no ): ");
turn = keybd.next();
}
if(turn.equalsIgnoreCase("no"))
System.out.println();
That way if the user enters anything other than the string
"yes" the
while loop will break and it will stop asking for integer input
Edit :: Just something i noticed btw with your main code posted in the first post why are you taking numbers as entered by the user and storing them in
String number ? When using
JOptionPane you need to do this and then parse them to an Integer using
Integer.parseInt(someStringRep);So just a suggestion for you is to change your input to the use of Integers as you actually suggest in the user prompt... when you use "Enter an Integer (or nothing stop) : "
java
public static void main(String[] args) {
String str, turn = "yes";
int userEnteredInteger = 0;
//what it does
System.out.println("This program will average a series of numbers.");
Scanner keybd = new Scanner(System.in);
while (turn.equalsIgnoreCase("yes"))
{
System.out.print("Enter an integer : ");
// String number = keybd.nextLine(); // Instead of using this we will use the below
userEnteredInteger = keybd.nextInt();
// check if user wishes to continue
System.out.println("\nDo you wish to continue (yes / no ): ");
turn = keybd.next();
}
if(turn.equalsIgnoreCase("no"))
System.out.println();
Now if you are planning on actually adding each integer the user enters and adding them up then u need to add them as each is entered and keep count of how many are entered... Hence a variable
int counter = 0; would be a good idea and then after each loop of the while loop increment counter++; (counter = counter + 1)... Also you will need to do something a little different with your variables... you will need to add each integer the user inputs to the total of the previous ones... for example
java
//in the while loop we have
System.out.println("Enter an Integer : ");
userEnteredInteger = keybd.nextInt()
//that would need modification so that each time the user enters something it is added to
//the previous total of the integers...
//so something like
userEnteredInteger += keybd.nextInt();
//this will take the user input and add it to the previous input's.
//after each input increment your counter also
counter++;
So say the user inputs
1 followed by 2, followed by 3
it would operate like this
userEnteredInteger = 0; // 0
userEnteredInteger = userEnteredInteger + 1; // 1
userEnteredInteger = userEnteredInteger + 2; // 3
userEnteredInteger = userEnteredInteger + 3 // 6
Now using the variable counter you can calculate the average by dividing userEnteredInteger by the counter...
java
System.out.println("Average = " + (userEnteredInteger / counter ) );
Goodluck
This post has been edited by bbq: 13 Oct, 2008 - 01:22 AM
12 Oct, 2008 - 07:10 PM
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