Need help with my graphic calculator!!!

Hello everybody!! I need help with my little program I made.... The problem is that I am unable to use to calculate but it is possible to compile the code!! What should I do?? Thanks in advance.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Aritmetik extends JFrame implements ActionListener{
     private JLabel l1 = new JLabel("Tal1: ", JLabel.LEFT);
     private JLabel l2 = new JLabel("Tal2: ", JLabel.LEFT);
     private JLabel l3 = new JLabel("Resultat",JLabel.LEFT);
     private JLabel l4 = new JLabel(" ", JLabel.RIGHT);
     private JTextField t1 = new JTextField(" ",10);
     private JTextField t2 = new JTextField(" ",10);
     private JButton b1 = new JButton("+");
     private JButton b2 = new JButton("-");
     private JButton b3 = new JButton("*");
     private JButton b4 = new JButton("/");
     public Aritmetik(){
          Container v = getContentPane();
          v.setLayout(new GridLayout(5,2));
          v.add(l1);
          v.add(t1);
          v.add(l2);
          v.add(t2);
          v.add(b1);
          v.add(b2);
          v.add(b3);
          v.add(b4);
          v.add(l3);
          v.add(l4);
          b1.addActionListener(this);
          b2.addActionListener(this);
          b3.addActionListener(this);
          b4.addActionListener(this);
          pack();
          setVisible(true);
          setDefaultCloseOperation(EXIT_ON_CLOSE);
     public void actionPerformed(ActionEvent e){
          int tal1 = Integer.parseInt(t1.getText());
          int tal2 = Integer.parseInt(t2.getText());
               if(e.getSource() == b1){
          if(t1.getText().equals("") || t2.getText().equals(""))
                                   JOptionPane.showMessageDialog(null, "Mata in tal!");
               else{
                    l3.setText("Resultat ");
               l4.setText(" " + (tal1+tal2));
               else if(e.getSource() == b2){
                    int sub = tal1-tal2;
                    l4.setText(" " + (sub));
               else if(e.getSource() == b3){
                    int multi = tal1*tal2;
                    l4.setText(" " + (multi));
               else if(e.getSource() == b4){
                    int div = tal1/tal2;
                    l4.setText(" " + (div));
               public static void main(String[] arg){
               Aritmetik A =new Aritmetik();

Here is your problem:
public void actionPerformed(ActionEvent e){
int tal1 = Integer.parseInt(t1.getText().trim()); // add the trim()
int tal2 = Integer.parseInt(t2.getText().trim()); // add the trim()
if(e.getSource() == b1){
    if(t1.getText().equals("") || t2.getText().equals(""))
      JOptionPane.showMessageDialog(null, "Mata in tal!");
    else{
      l3.setText("Resultat ");
      l4.setText(" " + (tal1+tal2));
}... Better ...
public void actionPerformed(ActionEvent e) throws NumberFormatException {
String tala = t1.getText().trim();
String talb = t2.getText().trim();
if ( tala == null || "".equals(tala) || talb == null || "".equals(talb) ) {
    JOptionPane.showMessageDialog(null, "Mata in tal!");
    return();
int tal1 = Integer.parseInt(tala);
int tal2 = Integer.parseInt(talb);
if(e.getSource() == b1){
    l3.setText("Resultat ");
    l4.setText(" " + (tal1+tal2));
else if(e.getSource() == b2){
    int sub = tal1-tal2;
    l4.setText(" " + (sub));
else if(e.getSource() == b3){
    int multi = tal1*tal2;
    l4.setText(" " + (multi));
else if(e.getSource() == b4){
    int div = tal1/tal2;
    l4.setText(" " + (div));
}Message was edited by:
abillconsl

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Audigy
SuperFlower 14cm 500watt
I haven't started to overclock my machine yet as I have yet to fix this problem. Everything is running stock. I'm finding that its random. I can play Prince of Persia Warrior Within for hours on end without a problem. Then play Counterstrike Source and it will go to after about 5 mins. I decided to try benchmarks and 3dmark01 will do the same thing randomly. Even Battle Field will play for about 10 mins and it will just go to the fuzzy screen. I even heard that some Soundblaster Cards cause problems and have tried using the onboard sound, with no effect. I have also disabled AGP SideBand and AGP Fastwrite in the bios, as also this can cause some issues, to no effect. I thought maybe the video card maybe the problem, and threw a crappy 5700 LE in my machine, still with no effect. CPU temp is around 36c (water cooled) and GPU is around 48c. Does anyone have any idea as to why the screen craps out in just about every game I play. I'm running Winxp Pro SP2 with DX9.0c, with the latest Drivers for everything I'm running (mainboard, vga, sound, etc). If you can suggest something, please let me know.

X-((Well, This sorta sounds like what just happened to me.
My graphics card decided to take a dump on me. When I was playing a game the graphics went all garbled and everything froze. System rebooted a couple times, and yes it seems the cards fan stoped rotating and it fried.
So to me, it sounds like your video. But you say you tried changing video cards with no effect.
Dang. Sorry I cant think of anything. But on the bright side, your post was bumped.

Need help with crazy custom calculations code in Acrobat XI pro

Im trying to calculate some text feilds together and just cant figure it out. I have two text feild boxes that I would input certain numbers to calculate in, Textfeild D5 and D6, once the user supplies the numbers in the D5 and D6 I need a text feild (D9) to calculate and produce a number thats used in another calculation. Any help would be greatly appriciated. Im good at HTML and CSS but only begining with javascript. Im using acrobat XI pro and I put this code in the custom javascript area within the text feld "D9" properties.
var Dsix = +getField("D6").value;
var Dfive = +getFeild("D5").value;
var B2 = 0.37;
var B3 = 0.45;
var B4 = 0.53;
if (Dsix = 15){
D9.value = B2*Dfive;
if (Dsix = 30){
D9.value = B3*Dfive;
if (Dsix = 45){
D9.value = B4*Dfive;

Well thats makes since but unfortunitly it didnt work. The green text feild D9 is where im placing code at. they will be hiiden feilds. the red outlined text feilds are all input feilds. seconds is D6 and nozzels is D5.

I need help with this program ( Calculating Pi using random numbers)

hi
please understand that I am not trying to ask anymore to do this hw for me. I am new to java and working on the assignment. below is the specification of this program:
Calculate PI using Random Numbers
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:
� / 4 = 1 - (1/3) + (1/5) - (1/7) + (1/9) - (1/11) + ...
There is another novel approach to calculate �. Imagine that you have a dart board that is 2 units square. It inscribes a circle of unit radius. The center of the circle coincides with the center of the square. Now imagine that you throw darts at that dart board randomly. Then the ratio of the number of darts that fall within the circle to the total number of darts thrown is the same as the ratio of the area of the circle to the area of the square dart board. The area of a circle with unit radius is just � square unit. The area of the dart board is 4 square units. The ratio of the area of the circle to the area of the square is � / 4.
To simuluate the throwing of darts we will use a random number generator. The Math class has a random() method that can be used. This method returns random numbers between 0.0 (inclusive) to 1.0 (exclusive). There is an even better random number generator that is provided the Random class. We will first create a Random object called randomGen. This random number generator needs a seed to get started. We will read the time from the System clock and use that as our seed.
Random randomGen = new Random ( System.currentTimeMillis() );
Imagine that the square dart board has a coordinate system attached to it. The upper right corner has coordinates ( 1.0, 1.0) and the lower left corner has coordinates ( -1.0, -1.0 ). It has sides that are 2 units long and its center (as well as the center of the inscribed circle) is at the origin.
A random point inside the dart board can be specified by its x and y coordinates. These values are generated using the random number generator. There is a method nextDouble() that will return a double between 0.0 (inclusive) and 1.0 (exclusive). But we need random numbers between -1.0 and +1.0. The way we achieve that is:
double xPos = (randomGen.nextDouble()) * 2 - 1.0;
double yPos = (randomGen.nextDouble()) * 2 - 1.0;
To determine if a point is inside the circle its distance from the center of the circle must be less than the radius of the circle. The distance of a point with coordinates ( xPos, yPos ) from the center is Math.sqrt ( xPos * xPos + yPos * yPos ). The radius of the circle is 1 unit.
The class that you will be writing will be called CalculatePI. It will have the following structure:
import java.util.*;
public class CalculatePI
public static boolean isInside ( double xPos, double yPos )
public static double computePI ( int numThrows )
public static void main ( String[] args )
In your method main() you want to experiment and see if the accuracy of PI increases with the number of throws on the dartboard. You will compare your result with the value given by Math.PI. The quantity Difference in the output is your calculated value of PI minus Math.PI. Use the following number of throws to run your experiment - 100, 1000, 10,000, and 100,000. You will call the method computePI() with these numbers as input parameters. Your output will be of the following form:
Computation of PI using Random Numbers
Number of throws = 100, Computed PI = ..., Difference = ...
Number of throws = 1000, Computed PI = ..., Difference = ...
Number of throws = 10000, Computed PI = ..., Difference = ...
Number of throws = 100000, Computed PI = ..., Difference = ...
* Difference = Computed PI - Math.PI
In the method computePI() you will simulate the throw of a dart by generating random numbers for the x and y coordinates. You will call the method isInside() to determine if the point is inside the circle or not. This you will do as many times as specified by the number of throws. You will keep a count of the number of times a dart landed inside the circle. That figure divided by the total number of throws is the ratio � / 4. The method computePI() will return the computed value of PI.
and below is what i have so far:
import java.util.*;
public class CalculatePI
public static boolean isInside ( double xPos, double yPos )
     double distance = Math.sqrt( xPos * xPos + yPos * yPos );
public static double computePI ( int numThrows )
    Random randomGen = new Random ( System.currentTimeMillis() );
    double xPos = (randomGen.nextDouble()) * 2 - 1.0;
    double yPos = (randomGen.nextDouble()) * 2 - 1.0;
    int hits = 0;
    int darts = 0;
    int i = 0;
    int areaSquare = 4 ;
    while (i <= numThrows)
        if (distance< 1)
            hits = hits + 1;
        if (distance <= areaSquare)
            darts = darts + 1;
        double PI = 4 * ( hits / darts );
        i = i+1;
public static void main ( String[] args )
    Scanner sc = new Scanner (System.in);
    System.out.print ("Enter number of throws:");
    int numThrows = sc.nextInt();
    double Difference = PI - Math.PI;
    System.out.println ("Number of throws = " + numThrows + ", Computed PI = " + PI + ", Difference = " + difference );
}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.

Need help with using graphics in swing components

Hi. I'm new to Java and trying to learn it while also developing an application for class this semester. I've been following online tutorials for about 2 months now, though, and so I'm not sure my question counts as a "new to Java" question any more as the code is quite long.
Here is the basic problem. I started coding the application as a basic awt Applet (starting at "Hello World") and about a month in realized that Swing components offer better buttons, panels, layouts, etc. So I converted the application, called BsfAp, to a new JApplet and started adding JPanels and JComponents with layout managers. My problem is, none of the buffered graphics run in any kind of JPanel, only the buttons do. I assume the buffered graphics are written straight to the JApplet top level container instead but I'm not entirely sure.
So as to not inundate the forum with code, the JApplet runs online at:
http://mason.gmu.edu/~dho2/files/sensor.html
The source code is also online at:
http://mason.gmu.edu/~dho2/files/BsfAp.java
What I would like to do is this - take everything in the GUI left of the tabbed button pane and put it into a JScrollPane so that I can use a larger grid size with map display I can scroll around. The grid size I would like to use is more like 700x1000 pixels, but I only want to display about 400x400 pixels of it at a time in the JScrollPane. Then I could also move this JScrollPane around with layout manager. I think this is possible, but I don't know how to do it.
I'm sure the code is not organized or optimized appropriately to those of you who use Java every day, but again I'm trying to learn it. ;-)
Thanks for any help or insight you could provide in this.
Matt

Couple of recs:
* Don't override paint and paint directly on the JApplet. Paint on a JPanel and override paintComponent.
* The simplest way to display a graphic is to put an image into an ImageIcon and show this in a JLabel. This can then easily go inside of the JScrollPane.
* You can also create a graphics JPanel that overrides the paintComponent, draw the image in that and show that inside of the JScrollPane.
* don't call paint() directly. Call repaint if you want the graphic to repaint.
Here's a trivial example quickly put together:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Paint;
import java.awt.RenderingHints;
import java.awt.geom.Ellipse2D;
import java.lang.reflect.InvocationTargetException;
import javax.swing.JApplet;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
public class BsfCrap extends JApplet
    private JPanel mainPanel = new JPanel();
    private JScrollPane scrollPane;
    private JPanel graphicsPanel = new JPanel()
        @Override
        protected void paintComponent(Graphics g)
            super.paintComponent(g);
            Graphics2D g2d = (Graphics2D)g;
            RenderingHints rh = new RenderingHints(
                RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);
            g2d.setRenderingHints(rh);
            Paint gPaint = new GradientPaint(0, 0, Color.blue,
                40, 40, Color.magenta, true);
            g2d.setPaint(gPaint);
            g2d.fill(new Ellipse2D.Double(0, 0, 800, 800));
    public BsfCrap()
        mainPanel.setPreferredSize(new Dimension(400, 400));
        mainPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
        graphicsPanel.setPreferredSize(new Dimension(800, 800));
        graphicsPanel.setBackground(Color.white);
        scrollPane = new JScrollPane(graphicsPanel);
        scrollPane.setPreferredSize(new Dimension(300, 300));
        mainPanel.add(scrollPane);
    public JPanel getMainPanel()
        return mainPanel;
    @Override
    public void init()
        try
            SwingUtilities.invokeAndWait(new Runnable()
                public void run()
                    setSize(new Dimension(400, 400));
                    getContentPane().add(new BsfCrap().getMainPanel());
        catch (InterruptedException e)
            e.printStackTrace();
        catch (InvocationTargetException e)
            e.printStackTrace();
}

Need help with adding graphics to NSTextView

I am looking for information on adding graphics to NSTextView so that the graphic is linked to a point in the text and will move with it as the window is resized. I understand that a subclass of NSTextContainer is needed to define the line lengths, etc. for NSLayoutManager. What I cannot figure out is how to know what text is being processed when the message to specify line positions is received by the subclass.
What I really need is a sample program that shows how to link a graphic to the text.

I did that bad it's not there and doesn't give me to option to click on it

Need help with a form calculation

I am trying to create a form in Acrobat that will support a calculation of percentages. I have the
following formula:
if (a1.value == "" || a1.value == "" && b1.value == "") {c1=0} else {b1/a1}
The percentage is not calculating and is remaining at 0% when numbers are entered on the form. I am trying to avoid the error messages we receive if we just enter the basic calculation in to the simplified (because some of the cells may have a value of 0).
Can anyone help?

Try this:
// Get the field values
var v1 = getField("a1").value;
var v2 = getField("b1").value;
//. Perform the calculation
if (v1) {
event.value = v2 / v1;
} else {
event.value = 0;
Edit: corrected typo

Need help with Report Script calculation...

When trying to implement a calculation on 2 members (sales, tax exempt) I am having a problem keeping the report from accumulating the calculation total...
Any ideas would certainly be appreciated.
Thanks,
//*****Script******
{ CALCULATE ROW "item1" OFF}     //sets variable for first calculation item
{ CALCULATE ROW "item2" OFF}     //sets variable for second calculation item
<row("entities", "Measures")
//{Supoutput}
{SETROWOP "item1" +}     //starts adding the member
"Sales"
{SETROWOP "item1" OFF}     //stops adding the member
{SETROWOP "item2" +}          //starts adding the member
"tax exempt"
{SETROWOP "item2" OFF}     //stops adding the member
//{OUTPUT}
{ CALCULATE ROW "total sales" = "item1" - "item2"
PRINTROW "total sales"}
//*****what I am expecting******
north      sales     777.00
north      tax exempt     27.00
north      total sales     750.00
south      sales     796.00
south      tax exempt     23.00
south      total sales     773.00     <======     correct
//******actualreport results******
north     sales     777.00
north      tax exempt     27.00
north      total sales     750.00
south     sales     796.00
south      tax exempt     23.00
south      total sales     1523.00     <==== accumulated number / wrong!
Edited by: Adam M on Sep 29, 2011 5:06 PM

You should do this calculation in Essbase, not in report script. Add dynamic calc member "Total Sales" with formula "Sales" - "Tax Exempt"...
Regards,
Yuri

Need help with "pie" graphic

Hi, I'm trying to create a background that has a circular pie kind of effect that's popular these days where each slice of the pie is a slightly different color to create a cool background. This isn't the greatest example but check the red and dark red sun ray effect here ...
http://gainesvillesuzuki.com/images/ad_one.jpg
My question is, what is the easiest way to create this in illustrator?? I've been creating one slice with the pen tool, copying it while I rotate it with the rotate tool after I change the rotate axis to the middle , but doing that like 30-40 times gets really tedious, plus the pie slices never fit exactly together at the end (because the slices aren't divisions of 360).
If anyone knows a better way I'm all ears, thanks!

This kind of pie graph is easy. Double-click on the graph tool and select the pie graph. Drag a square. Then enter as many digits as you need (always the same digit) in the top line of the data spreadsheet. Use the right arrow key to hop between boxes. You will need to fill in as many boxes as you need slices in the pie graph.
When you are satisfied with the number of slices, copy/drag the graph and ungroup it. Now you can colour the slices as you wish.
It's a good idea to keep the original grouped graph in case you need to add slices in the data spreadsheet.

Need help with exporting graphic styles

Hi all.
I'm designing a game for iPad and am using Illustrator CS3 to create the graphics. I created lots of card sized graphics and gave them all the 'RGB Parchment' graphic style which comes with Illustrator.
The document in the picture is (part of) an illustrator file that I created these cards in. If I take one out to another document to edit it and save it as a .png - it comes back different. As you can see in the picture, in the centre are two mock ups I made for a card. The left is an illustrator file 'placed' in the document and the right is the same file but exported as a .png and then placed in.
The .png keeps the transparencies but the shadow is completely different, it's a horrible brown as well as the shape being slightly different and the quality quite low.
I sent the whole mock up picture (which is much bigger) to my iPad and I can still see the lower quality in the right, .png card.
If I want to bring graphics into some software to build the app I can't bring in illustrator files so I cant to create them as .pngs but when they're so different / low quality I don't know what to do. I just want to be able to use that 'RGB Parchement' graphic style and not have it changed so much when I export it.
Can anyone suggest anything? Thanks!

I really am baffled myself this was a drop shadow applied to a rectangel wit the parchment style applied to it on a brown background and the drop shadow was applied with the multiply as the mode.
And then exported from AI as a png?
Why is there an issue and exactly what that issue is I can't see can you explain it or show it better maybe other people have a better idea.
Here it is after being saved without a background but with a dropped shadow created with a multiply blend and then placed on a brown background color? ( iagve it a feather and blur just to see what it looked like.

Need help with printing graphic full size in trial CS5

I'm using the trial version of photoshop CS5 and am having trouble printing.
My graphic size is 9.4" x 6.3". However, when I print, it comes out as a tiny thumbnail, about 1.25".
How do I get it to print the full size?

The height, width, and resolution are all linked, so change one to get the others. You may not get the exact dimension for both height and width unless you crop, or distort image.
PPI is pixels per inch which is not important for printing, you are more concerned by the printer setting for dpi or dots per inch.

Need help with my graphic calculator!!!

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