Loop Structures

[Michael Steen]

I am very new to Java so please bare with me. I am writing a program that calculates court fines. At the end of the application I need to insert some code that will ask the user if they would like to continue at this point I need to invoke a loop if the answer is y finish if the answer is n. I have tried the while(!done) method I have tried IF ELSE (I have tried a lot of stuff). The variable I am using for the users answer of yes or no is String repeat; my boolean variable is boolean done = flase; From what I can tell the Boolean done = false is staying false for either choice. How can I get the repeat variable to yes or no to change the boolean done to true? I am taking on line classes and my instructor answer was to check Google.com s I could use anyones help at this point.
Thank you in advance for your assistance.

[Les Dsouza]

If you are reading the user input from System.in then the problem maybe because System.in.read returns the user entered text+Carriage return + linefeed (in windows, in unix it will have text+ CR). Hence you need to discard these before using the input string for comparison.
check out the example below:

import java.util.*;
public class TestIn {
public static void main(String [] args){
byte buf[] = new byte[12];
String str=null;
int i=0;

try { i=System.in.read(buf); }
catch(Exception e){e.printStackTrace();}
String in = new String(buf,0,i);
System.out.println(" length "+in.length() + "  "+in);

StringTokenizer stk = new StringTokenizer(in,"\n\r",false);
while(stk.hasMoreTokens()){
str = stk.nextToken();
}
System.out.println(" length after removing CR, LF is "+str.length()+" String entered "+ str);
}
}
  

hope this helps...

[Michael Steen]

Thank you for the input.