Overview

• The Curl Developer's Guide which gives you an overview of the Curl language.
• The API Reference which documents each primitive and class in the Curl language in detail.

Starting the IDE

Components of the Curl IDE

• The IDE main window is the window that appears when you start the IDE. It gives you access to functionality and information you need to build your application. See The Curl IDE Main Window.
• The Class Browser provides a graphical view of the relationships between classes defined in all open projects. It gives you a quick overview of code you are working on, and enables you to navigate to the source for any class or class member. See Class Browser.
• The Inspector lets you examine the state of graphic objects in your applet. This can help you understand why your applet appears the way it does. See Inspecting Objects.
• The Profile Viewer lets you examine the time used by components of your applet. This can help you make your code faster and more efficient. See Profiling Your Applets.
• The Visual Layout Editor provides a visual interface for doing the graphical layout of your applet. See Visual Layout Editor.
• The Documentation gives you access to the Developer's Guide and Curl User's Guide included with the IDE.

IDE Licensing

The Curl IDE Main Window

IDE Layouts

The Main Window Panes

Project Pane

Definitions Pane

Editor Pane

Errors Pane

Search Results Pane

Breakpoints Pane

Exceptions Pane

Output Pane

Call Stack Pane

Locals Pane

Expressions Pane

Status Bar

Figure: IDE Window Status Bar

• A message area that displays information, such as the opening curly brace ({) that matches the closing brace you have just typed.
• The line and column in the source file where the cursor is located.
• Whether the file has been modified since it was last saved. Two asterisks (**) here indicate that there are unsaved changes in the file.

IDE Main Window Configuration

Edit Layout

Figure: Initial IDE Configuration

• Each of the visible panes has a title bar and a close box. The title bar indicates which pane currently has focus and provides a grab point for moving panes in the window configuration. See Modifying the Window Configuration.
• The Project, Editor, and Definitions panes are organized in a vertical split.
• The Errors, Search Results, Breakpoints, and Output panes are organized in a tab group.
• The tab group is organized in a horizontal split.
• You can resize the window and the panes in it by clicking and dragging the borders between them.

Debug Layout

Figure: Debug Layout Configuration

Modifying the Window Configuration

• docked in a in a horizontal or vertical split
• docked in a tab group; the tab group itself occupies a horizontal or vertical split
• floating
• hidden

Floating a Docked Pane

Figure: Floating the Editor Pane

Figure: Editor Pane Floating

Vertical Splits

Figure: Moving the Editor Pane Left

Figure: Resulting Configuration

Figure: Moving the Editor Pane: Full Height Vertical Split

Figure: Resulting Full Height Vertical Split

Horizontal Splits

Figure: Moving the Editor Pane Down

Figure: Resulting Configuration

Sub-splits

Figure: Horizontal Sub-split

Figure: Resulting Configuration

Adding a Pane to a Tab Group

Figure: Adding the Editor Pane to a Tab Group

Removing a Pane from a Tab Group

Figure: Floating the Output Pane

Restoring Window Configuration

• From Last Saved restores the window configuration in effect at the beginning of the current session.
• From Default restores the initial installed window configuration, as shown in the previous figure.

Controlling Docking Behavior

• Dockable means the pane can be either docked or floated, using the UI gestures described in previous sections. A dot to the left of the selection indicates that this option is in effect.
• Hide hides the pane. You can make the pane visible by selecting the name of the pane from the View menu.
• Floating means the pane can only be floated. It remains floating regardless of how you move it around the screen. This is useful if you want to move the pane freely around the screen without accidentally docking it in the IDE window. A dot to the left of the selection indicates that this option is in effect.

Setting IDE Preferences

General Preferences

• Character Encoding for New Files selects the character encoding used for files created by the IDE editor. See Character Encoding Support for more information.
• Recently Used Project List and Recently Used File List sets the length of the lists of recently used files and projects maintained by the IDE. You can access these lists from the File menu.
• Use autocompletion lets you enable and disable the editor source code completion feature. See Source Code Completion.
• Scroll to last syntax error sets the IDE to scroll to the last syntax error when a syntax error occurs in an applet you are developing and testing. This setting is most useful if you use the Reload button in your browser to view changes in your applet. In this case, the IDE does not clear previous errors, and it can be useful to have the IDE scroll automatically to the last error. Note that a single applet can produce many errors, so it can still be difficult to figure out which errors came from the most recent run of the applet. If you use the Run button in the IDE to view your applet, which is the recommended procedure, the IDE clears all previous errors, and the "Scroll to last syntax error" setting does not make as much difference.
• Show value on hover lets you determine whether you can view the value of variables and expressions by holding the cursor over the object in the Editor when an applet is stopped at a breakpoint. The value appears as a tooltip. You can view the value only if there is a valid value available. If an error has occurred, you cannot view the value.
  You can view values only within valid contexts for expression evaluation. Available values are limited to those inside the source range of a method on the stack of the currently stopped applet.
• Show line numbers determines whether the editor display includes line numbers.
• Close Find Dialog on Find Next/Previous controls whether the Find dialog closes whenever you perform a Find Next, Find Previous or Replace and Find Next operation. The default setting is off. This setting is useful if you want to set the search attributes in the dialog and use keyboard shortcuts for other find replace operations.
• Close Find Dialog on Find All controls whether the dialog closes whenever you perform a Find All or Replace All operation. The default setting is on.
• Show Start Page when starting up determines whether the editor shows the Start Page when it starts up.

Editor Preferences

• Editor Colors: enables you to select colors used for colorization of Curl source code. Click on the color button to open a color selection dialog.
• Editor Font Family: enables you to select the font family used to display text.
• Editor Font Size: enables you to select the font size used to display text.
• The preview window at the bottom of the Preferences dialog enables you to view your changes before accepting them.
• Show print margin at column if selected, and the current editor font is a monospace font, draws a line in the source editor to show where the margin falls when the file is printed. The number allows you to set the position of this line to reflect your printer settings.

URL Mapping

• Run File/Run Project from the tool bar now brings up the applet via http access.
• Edit Applet Source, which can be accessed by control-right-clicking on the applet in the browser window, will bring up the Curl source code in the IDE.
• Breakpoints set in the IDE for the local file are set in the mapped URL as long as the files are open. Once you close the files, the breakpoints set in the URL are removed. Also, breakpoints do not work if the server URL uses files deployed by the IDE's Deployment feature. The reason is that deployed files have been modified and do not match the original source.
  Be sure to add the URL to the list of debuggable locations in the RTE Control Panel Debugger tab before using the breakpoints in your URL mapped project.

The IDE Class Browser

IDE Menus

File Menu

• New or ctrl+n creates a new file. See Creating New Files.
• Open or ctrl+o opens an existing file.
• Open Url opens a source file from the Web.
• Close filename or ctrl+w closes the named file.
• New Project or ctrl+shift+n creates a new project. See Creating a Project.
• Open Project or ctrl+shift+o opens an existing project. This command opens the file open dialog. Browse to the directory that contains the project and select the project file. On Windows systems, you can double-click on a Curl IDE project file in Windows Explorer to open the project.
• Close Project closes the current project. You are prompted to save unsaved changes in any file in the project.
• Save or ctrl+s writes the contents of the currently open file to the disk. If you have not saved the file before, Save acts as Save as and prompts you for a location and a file name for the new file.
• Save as saves the file using a different file name or location. The Source Editor prompts you for a new location and file name to use to save the file.
• Save all or ctrl+shift+s saves all open files.
• Revert reads the file contents stored on the disk into the editor, discarding all changes since the last time you saved the file.
• Print or ctrl+p prints a file. When you print source code from the Source Editor, text lines that are longer than the width of the page are cut off at the right margin. The exact cutoff point varies depending on the fonts and printers you use. You should try to keep line length below a reasonable limit. If necessary, you can print out source code using landscape format.
  
  On Linux platforms, the Curl RTE uses CUPS for printing. Please visit LinuxPrinting.org CUPS Quick Start for more information.
• Properties or alt+enter opens the Source File Properties dialog, which enables you to examine the character encoding. See Character Encoding Support.
• Recent Projects provides a list of projects recently opened in the IDE. You use the Preferences... command on the Edit menu to set the length of this list.
• Recent Files provides a list of files recently opened in the IDE. You use the Preferences... command on the Edit menu to set the length of this list.
• Exit closes all open files and exits the IDE. The IDE prompts you before closing a file containing unsaved changes.

Edit Menu

• Undo or ctrl+z reverses recent editing changes. Each time you click Undo the editor progressively steps back through changes you have made. The editor maintains an undo list of approximately your most recent 100 changes.
• Redo or ctrl+y reinstates editing changes you have reversed with Undo. Each time you click Redo the editor progressively steps forward through changes you have undone. The editor maintains a redo list of all the changes you have reversed with Undo.
• Cut or ctrl+x removes selected text and copies it to the clipboard.
• Copy or ctrl+c copies selected text to the clipboard.
• Paste or ctrl+v writes the most recently selected text from the clipboard into the file, replacing any currently selected text.
• Delete removes selected text without copying it to the clipboard.
• Select All or ctrl+a selects all the text in the currently open file.
• Go to Line or ctrl+j positions the cursor at the beginning of the specified line. Enter the line number in the Go to Line dialog.
• Go to Next or ctrl+] navigates to the next file location in the list maintained by the IDE Editor. Locations are added to the list when you show or scroll a file with a UI operation other than using the scroll bar, keyboard navigation, or mouse click. For instance, operations such as Goto Line, Show Definition, and Show Error all add locations to the list.
• Go to Previous or ctrl+[ navigates to the previous file location in the list maintained by the IDE editor.
• Fix Indent or tab applies appropriate indenting to the selected lines, or the current line, if none are selected.
• Comment Selection or f8 adds a comment string, ||-- to the beginning of the selected lines.
• Uncomment Selection or shift+f8 removes a comment string, ||-- from the beginning of the selected lines.
• Balance Curly Braces or ctrl+b selects everything from the cursor position to the nearest set of enclosing curly braces {, including the braces.
• Show Completions or ctrl+space
• Split/UnSplit Editor Pane splits the editor pane horizontally into two sub-panes, or restores a single pane if the pane is already split. It is available only when the editor pane has focus. Click and drag the panel divider to resize the panels.
• Switch Editor Pane if you have split the editor pane with Split Pane, this command moves the cursor to the other sub-pane.
• Show Open Files opens the Open Editor Files dialog, which contains a list of complete path names for all files open in the editor. You can select files in the list and use buttons in the dialog to activate, save and close selected files.
• Next Editor or ctrl+pgdn navigates to the next tab in the IDE Editor pane.
• Previous Editor or ctrl+pgup navigates to the previous tab in the IDE Editor pane.
• Preferences opens the Preferences dialog box. See Setting IDE Preferences.

Search Menu

• Find or ctrl+f opens the Find dialog. See Search and Replace for more information on the fields and controls on this dialog.
• Find Next or ctrl+g searches forward in the file for the next occurrence of the find string.
• Find Previous or ctrl+shift+g searches backward in the file for the next occurrence of the find string.
• Find Definition or alt+f12 opens the Find dialog with selections appropriate for searching definitions. Sets the Look in field to Definitions, the search type to Fragment and Match case to true. Unlike Find or Replace, the starting pattern is not the current selection but the Curl identifier at the cursor location in the current buffer. If the cursor is not at an identifier, the selection is empty.
• Go To Definition or f12 is like Find Definition, except that this command goes immediately to the first match without actually bringing up the find dialog. If the search pattern is empty, behavior is the same as Find Definition.
• Replace or ctrl+h opens the Find dialog with the replacement string field visible.
• Replace Current or ctrl+r replaces the current instance of the find string with the replacement string.
• Replace & Find Next or ctrl+shift+r replaces the currently selected match for the find string, and then searches for the next instance of the find string in the file.
• Find All or f3 clears the Search Results pane of any previous search output and writes each line that contains a match to Search Results pane with the found string highlighted. If the find string occurs more than once on a line, the IDE writes a separate result line for each occurrence. The scope of the search is determined by the Look in field in the find dialog. See Setting Search Scope.
• Find All Append or shift+f3 like Find All except that the IDE appends new results to Search Results pane instead of clearing the pane first.
• Next Search Result or f2 selects the item in the Search Results pane that is below the current item.
• Previous Search Result or shift+f2 selects the item in the Search Results pane that is above the current item.
• Stop Search or ctrl+f3 stops the current search.

Project Menu

• Add File Resource brings up a file open dialog that you can use to add files to the project. You can control-click files to select multiple files to add to the project at once.
  You cannot add IDE buffer contents to a project until you have written the buffer to a file. Files loaded in the IDE via http, (except URL mapped project files see Changing Project Properties) and files created when you select Empty Editor Buffer from the New File dialog exist only in IDE buffers until you save them.
• Add Directory Resource opens a window that enables you to browse for an existing directory, or create a new one. The directory you select is added to the project.
• Add Package brings up a file open dialog that you can use to choose a package. The file you select must be a Curl package file. See Packages.
• Add Delegate-to brings up a dialog that enables you to enter a URL to a manifest file. You can use the Browse... button to browse for a manifest file. See Manifests
• Remove Selected Item from Project removes the selected item from the currently open project. The item is listed under the Other Files node.
• Current Target displays a popup menu that lists all available deployment targets for the current project and indicates the currently selected target.
• Edit Target Settings opens the Project Properties dialog with the Targets tab selected. See Deployment Targets.
• Edit Component Target Settings opens the Component Target Settings dialog on the selected component. See Target Settings
• Show/Hide Component Target Settings toggles visibility of the target settings indicators. When indicators are visible, they appear to the right of each file name.
• Change API Version changes the API version used for this project, and automates the updating of heralds in source files and the VLE runtime file.
• Properties opens a Project Properties dialog with the General tab selected. See Changing Project Properties
• Deploy deploys the project to the current deployment target according to the target settings. See Deploying Projects
• Deploy for OCC in addition to everything the Deploy command does, creates a Curl archive file (.car) appropriate for an application that supports Occasionally Connected Computing (OCC.)
  The application must be written to support OCC. See Occasionally Connected Computing.

Run Menu

• Run Project or f5 runs your project in your default browser, loading the project start file first. See Changing Project Properties for information on setting the start file.
• Run Project in New Window or shift+f5 runs your project in your default browser, using a new window.
• Run filename or ctrl+f5 runs the currently selected file in your default browser.
• Run filename in New Window or ctrl+shift+f5 runs the file you are currently editing in your default browser, using a new window.

Debug Menu

• Continue or f6 starts running the Curl applet. It will not be stopped again unless it encounters an error, an uncaught exception, or a breakpoint.
• Continue to Line or ctrl+10 starts running the Curl applet. It runs until it reaches the line where the cursor is currently located.
• Stop or shift+f6 stops execution of the Curl applet on entry to any debuggable procedure or method in the applet. Note that code loaded from a .pcurl file is not debuggable by default, even if other code in the applet is debuggable.
• Step In or f11 executes the next statement in the Curl applet. If the next statement is a procedure call, then the Debugger will move to the procedure and execute its first statement.
• Step Over or f10 executes the next statement in the Curl applet. If the next statement is a procedure call, then the procedure is allowed to run without stepping through it. The Debugger will stop the applet again when the procedure call returns.
• Step Out or shift+f11 executes the Curl applet until the current block of code exits. For example, if the current statement is within a procedure, then the Debugger will run the applet until the procedure returns. The Debugger will halt the applet at the first statement after the block.
• Quit Applet or ctrl+f6 quits the applet and closes the debugger window.
• Set/Remove Breakpoint sets or removes a breakpoint on the line where the cursor is positioned in the IDE Editor pane. Other breakpoints are not changed.
• Enable/Disable Breakpoint enables or disables a breakpoint on the line where the cursor is positioned in the IDE Editor pane. Other breakpoints are not changed.
• Copy Stack Trace copies the contents of the Call Stack pane. This is useful if you want to include the stack trace in an email message or other document.
• Show Expression Context is enabled if you have selected exactly one row in the Expressions pane. The command sets the selected frame in the Call Stack pane to the frame that was selected when you entered the expression. It also resets the contents of the Locals pane and the Editor pane as if you had selected the stack trace frame manually.
• Copy As OBJ copies a value from the IDE Locals or Expressions pane as an OBJ expression. This command is enabled if exactly one row is selected in the Expressions or Locals pane and the value has the form [variable-name @0xnnnnnnnn]. It puts {OBJ 0xnnnnnnnn} on the clipboard.
• Copy Name To Expressions creates a compound name from an expanded item and its parents and writes that name into the empty last row of the Expressions pane and raises that pane. This command is enabled only when exactly one row is selected in the Locals pane. See Locals Pane for more information and examples.

Tools Menu

• Visual Layout Editor opens the Visual Layout Editor. See Visual Layout Editor.
• VLE Extension Editor opens the VLE Extension Editor. See VLE Extension Editor.
• Coverage Viewer opens the Coverage Viewer. See ` Measuring Applet Code Coverage.
• Configure Editors opens the Configure Curl Editors dialog. This dialog enables you to install an external editor that has been specifically designed to work with the Curl IDE. If you do not have such an editor to install you do not need to use this command.
• Class Browser Opens the Class Browser window. See The IDE Class Browser.
• Profile Viewer Opens the Profile Viewer window. See Profiling Your Applets. See Measuring Applet Code Coverage.
• Http Monitor opens the Http Monitor. See Http Monitoring

View Menu

• Hide Active Pane hides the currently active pane. Information displayed or files open in the pane are unchanged. Selecting this menu item has the same result as clicking the close icon at the right side of the pane title bar.
• These menu items each make the named IDE pane active, and make it visible if it was hidden. A bullet to the left of the menu item indicates that the associated pane is currently visible. See The Main Window Panes.
  • Project
  • Editor
  • Definitions
  • Errors
  • Search Results
  • SCC Output
  • Breakpoints
  • Exceptions
  • Output
  • Call Stack
  • Locals
  • Expressions
• These menu selections choose the debug or edit layout. See IDE Layouts
  • Debug Layout
  • Edit Layout
• Restore Layout see Restoring Window Configuration

SCC Menu

• Get Latest Files synchronizes files in your workspace with the associated code repository.
• Refresh File Status ensures that the file status displayed by the IDE reflects current status in the source code control system.
• Check In checks in the selected file. Brings up a dialog which provides space to enter check-in comments. Clicking OK in this dialog invokes the check-in dialog of the associated source code control system.
• Check Out checks out the selected file. Brings up a dialog which provides space to enter check-out comments.
• Undo Check Out returns the selected file to its pre-check out status. Discards any changes.
• Show Differences shows differences between your local working copy of the file, and the version in the code repository.
• Show History invokes the revision history dialog of the associated source code control system.
• Show SCC Log displays the SCC Output pane in the IDE. This pane displays log messages generated by the associated source code control system.
• Settings opens the Project Properties dialog with the Source Code Control tab selected. See the section Source Code Control in Changing Project Properties.

Help Menu

IDE Tool Bar

Icon	Menu	Selection	Notes
	File	Save
	File	Save All
	Edit	Cut
	Edit	Copy
	Edit	Paste
	Run	Run Project	shift+button to run in new browser window.
	Run	Run "filename"	shift+button to run in new browser window.
	Debug	Go
	Debug	Stop
	Debug	Step In
	Debug	Step Over
	Debug	Step Out
	Debug	Quit Applet
	Edit	Go to Previous
	Edit	Go to Next
	View	Edit Layout
	View	Debug Layout

Search and Replace

Defining the Search

• Find what enables you to specify the find string. Text selected in the editor pane when you open the Find dialog becomes the default find string.
• Show/Hide Replace shows and hides fields and buttons used for replace operations.
• Replace with is visible only when you have clicked Show Replace. It enables you to specify a replace term.
• The following four radio buttons determine how the find string is interpreted.
  • Fragment searches for the find string as a substring. For example, searching for "book" as a fragment would find it in "bookcase".
  • Identifier searches for given full Curl identifier. For example, searching for "book" as an identifier would find it in "book.case" but not in "book-case".
  • Word searches for the find string as a word, which means that the find string must be preceded and followed by non-word characters. Word characters are those recognized by the \w regular expression wildcard. See Regular Expressions. As a rough guideline, word characters are letters and numbers. For example, searching for "book" as a word would find it in "book.case" or "book-case" but not in "bookcase".
  • Regular Expression searches for the find string as a regular expression. See Regular Expressions. When replace is used with a regular expression, the replace template has the same syntax as in the procedure regexp-subst.
• Match case makes the search case sensitive. This setting also applies to incremental searches, which otherwise do not use the Find dialog settings. See Incremental Search
• Look in enables you to specify the scope of the search. See Setting Search Scope
• The directory field and Browse button appears only when you are searching files in a directory. Type a path to a directory or use Browse to browse the file system.
• File types enables you to limit a directory search to specific file types.

Setting Search Scope

• Definitions limits the search to all files that contribute to the content of the Definitions pane, which is all files in the current open project, plus any open non-project files.
• Current Buffer limits the search to the current active buffer. When you are using this scope, each Find Next or Find Prev action starts searching from the current cursor position in the buffer. All other search scopes can involve multi-file searches, and process the files in a fixed order.
• Open Files limits the search to files currently open in the IDE Editor.
• Project limits the search to files in the specified project. If you choose this scope, fields appear that enable you to select the project and specify file types.
• Directory limits the search to files in the specified directory, not including subdirectories. If you chose this scope, fields appear that enable you to select the directory and specify file types.
• Directory and Subdirectories limits the search to files in the specified directory, including subdirectories.

History Boxes

Persistence

• the position of the window
• the width of the window
• the match case setting
• the five most recent history entries for the combo boxes that maintain history; see History Boxes. The list for the file types box always includes a set of standard choices.

Performing the Search

• Find Next like the Find Next command.
• Find Previous like the Find Previous command.
• Find All/Find All Append like the Find All command, or like Find All Append if you press shift. Note that the button label changes when you press shift.
• Replace like the Replace Current command.
• Replace & Find Next like the Replace & Find Next command.
• Replace All automatically replaces every remaining instance of the find string with the replacement string without prompting you further. Lists all lines containing replaced strings in the Search Results pane.
• Stop like the Stop Search command.
• Close closes the Find dialog.

Search Key Bindings

• Enter pressed from anywhere in the search dialog has the same result as clicking the currently selected command button, which is usually Find Next.
• ctrl+h brings up the dialog with the replace controls shown. Hitting Ctrl-H when the Find Dialog is already active, toggles the display of the replace controls.
• esc closes the dialog.
• The OK button in the "no more matches" popup dialog may be pressed not only using Enter, but also with ctrl+g or ctrl+shift+g. This allows you to continue to keep hitting ctrl+g for wraparound searches without having to switch to Enter to dismiss the popup.

Your First Applet

Step 1: Create a Project

1. On the File menu, click New Project. The New window appears with the New Project tab selected.
2. In the New window, select Applet Project to indicate you want to create a Curl applet, rather than one of the other types of projects. This selection affects the files that are automatically generated for your project, and some project settings.
3. In the Manifest Name field, type a manifest name for your project.
4. In the Directory field, type the name of the directory in which the IDE should store the project. If the directory does not exist, the IDE prompts you to confirm that it should create the directory. You can also click Browse to browse for a directory.
5. You do not need to change the default values contained in the API version field. The API version field indicates which version of the Curl API your applet works with.

Step 2: Editing the Source

{curl 8.0 applet}
{applet manifest = "manifest.curl"}

• The first line of code is called the herald. It tells the Curl RTE that this is a Curl language applet file, and gives the API version number the applet is designed to run on. See Heralds
• The third line is the applet declaration. It specifies the name of the component manifest for the applet, which is also the manifest for this project. See Manifests

Step 3: Adding Some Comments

Step 4: Adding Content

Step 5: Saving and Running Your Applet

Expanding on Your Applet

Step 1: Entering a Statement

Step 2: Creating Objects

• let is the start of an expression that defines a variable.
• today:DateTime creates an object reference variable. today is the name of the object reference, and DateTime tells what kind of variable it is (a reference to a DateTime object, in this case). Anywhere you use the variable today in your applet, you are accessing the DateTime object to which you have assigned the variable.
• The equal sign makes the today object reference variable refer to the newly-created DateTime object. This means that statements that refer to today are manipulating the object.
• {DateTime} is a call to a constructor for the DateTime class. This is similar to the call to the text formatting procedure you used above to create a paragraph. A constructor is a procedure that creates an object from a class, and returns it.

Step 3: Getting Information about Classes and Procedures

Step 4: Passing Parameters to a Procedure

{let today:DateTime = {DateTime}}
{let year-end:DateTime = {DateTime month=12, day=31}}
{let seconds-left:Time = year-end - today}
{paragraph There are just
    {text color="red",
        {value seconds-left / 1day}
    }
    days left this year!
}

Handling Errors

• Syntax errors are mistakes in the Curl language code of your applet. These errors can include simple typos, passing the wrong parameters to a procedure, or other basic problems. Syntax errors are caught by the IDE as it is preparing your applet to be run. When it finds a syntax error, it stops the compilation process and tell you the error it has found.
• Runtime errors occur while your applet is running. These errors occur when something unforeseen happens that your applet cannot handle. For example, trying to access an object that does not exist generates a runtime error called dereferenced null pointer.

Fixing Syntax Errors

Fixing Runtime Errors

Where to Go from Here

• Organizing Your Work with Projects which explains how you create a project and use it to organize your Curl language source and other files.
• Editing Curl Language Source, which explains how to use the Source Editor.
• Deploying Projects, which describes how to prepare your application to be copied to a Web server.
• Configuring Your Web Server, which describes how to prepare your Web server to serve Curl content.