Need help with basic program.....!

I've to write a program that generates a random number, which the user has to try and guess, after each guess they're told whether it's too high or too low etc., I've gotten this far, however, the user has only 10 guesses.... In my program I've used a while loop and the user gets an infinite number of guesses, I know I'm supposed to use a for loop, but can't seem to get it to work properly. Also, when the user guesses the number, the program then has to print out how many guesses it took, and I have no idea how to get it to do this AT ALL!!! I'd really appreciate some help with this, thanks v. much!!!!

I've to write a program that generates a random
number, which the user has to try and guess, after
each guess they're told whether it's too high or too
low etc., I've gotten this far, however, the user has
only 10 guesses.... In my program I've used a while
loop and the user gets an infinite number of guesses,
I know I'm supposed to use a for loop, but can't seem
to get it to work properly. Also, when the user
guesses the number, the program then has to print out
how many guesses it took, and I have no idea how to
get it to do this AT ALL!!! I'd really appreciate some
help with this, thanks v. much!!!!Hey not every book covers every aspect of Java (if you haven't got a book and don't want to buy 1 i recommend an online tutorial) If u want the user to have an infinate number of guesses, use an infinate while loop. Put this in a file called app.java:
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class app extends Applet implements ActionListener
     JLabel lbl=new JLabel("Guess a number between 0 and 10:");
     JTextField txtfield=new JTextField(20);
     JButton button=new JButton("Guess...");
     JLabel lbl2=new JLabel();
     int randomnumber=Math.round((float)Math.random()*10);
     public void init()
          add(lbl);
          add(txtfield);
          add(button);
          button.addActionListener(this);
     public void actionPerformed (ActionEvent e)
          String s=new String("");
          s+=randomnumber;
          if (e.getSource().equals(button) && txtfield.getText().equals(s))
               setBackground(Color.white);
               setForeground(Color.black);
               lbl2.setText("Got it!");
               add(lbl2);
               validate();
          else
               setBackground(Color.white);
               setForeground(Color.black);
               if (Integer.parseInt(txtfield.getText())>randomnumber)
               lbl2.setText("Too High!");
               else
               lbl2.setText("Too Low!");
               add(lbl2);
               validate();
Then create a HTML document in the classes folder:
<HTML>
<HEAD>
<TITLE>APPLET</TITLE>
</HEAD>
<BODY>
<HR>
<CENTER>
<APPLET
     CODE=app.class
     WIDTH=400
     HEIGHT=200 >
</APPLET>
</CENTER>
<HR>
</BODY>
</HTML>
It will do what you wish. If you want to have more then 10 numbers to guess, for example 100, do this:
int randomnumber=Math.round((float)Math.random()*100);
Does that answer your question?

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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    Thank you so much for offering to help me with this Jamie! When I tried to call change value using:
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    er, actually the applet does not seem to load at all.
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    drmjp2 wrote:
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    On to a new question.
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    Message was edited by:
    Bmiller234

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    hi
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    In geometry the ratio of the circumference of a circle to its diameter is known as �. The value of � can be estimated from an infinite series of the form:
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    public static void main ( String[] args )
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    Number of throws = 1000, Computed PI = ..., Difference = ...
    Number of throws = 10000, Computed PI = ..., Difference = ...
    Number of throws = 100000, Computed PI = ..., Difference = ...
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    and below is what i have so far:
    import java.util.*;
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            i = i+1;
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    }when I tried to compile it says "cannot find variable 'distance' " in the while loop. but i thought i already declare that variable in the above method. Please give me some ideas to solve this problem and please check my program to see if there is any other mistakes.
    Thanks a lot.

    You've declared a local variable, distance, in the method isInside(). The scope of this variable is limited to the method in which it is declared. There is no declaration for distance in computePI() and that is why the compiler gives you an error.
    I won't check your entire program but I did notice that isInside() is declared to be a boolean method but doesn't return anything, let alone a boolean value. In fact, it doesn't even compute a boolean value.

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    848290 wrote:
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