Reading in inputs

[JTan]

Hi,

may I know what is wrong with my following codes? It works fine for the very first time when data is entered. However, for the next item to be recorded, it is not possible to read in the code at all. I tried to use System.out.flush() but it seems it is of no avail.

do {

System.out.flush();

System.out.println("\nItems sold: "
System.out.println("=============="
try {
System.out.flush();

System.out.print("Enter product code: "
System.out.flush();
code = stdin.readLine();
} catch (NumberFormatException t)
{
System.out.println("\nPlease enter the correct product code: "
System.out.flush();
code = stdin.readLine();
}

try {
System.out.flush();
System.out.print("Enter quantity: "
quantity = Integer.parseInt (stdin.readLine());
} catch (NumberFormatException s)
{
System.out.println("\nPlease enter the correct quantity: "
System.out.flush();
quantity = Integer.parseInt (stdin.readLine());
}

try {
System.out.print("More items[Y/N]"
more = (char)stdin.read();
} catch (NumberFormatException r)
{
System.out.println("\nPlease enter the correct code: "
System.out.flush();
more = (char)stdin.read();
}

System.out.flush();
count++;
Item item = new Item(code, quantity);

while (cnt < quantity) {
sold.addElement(item);
cnt++;
}//while
System.out.flush();

} while ((more == 'Y')||(more == 'y'));

 

[vkarthik]

hi, i dunno if it'll work but give it a try:

instead of flushing the output buffer try to flush the input buffer. something like System.in.flush(). tell me if it works.

luv
Karthik.

 

[meadandale]

It's because you don't read in the whole line when you prompt for more input. You are leaving the \r\n in the input buffer and this gets picked up by the first readLine()

What you need to do is this:

more = stdin.readLine().charAt(0);

Regards,

Charles

 

[JTan]

vkarthik >> I dun think your code is compilable...