Circle with a line through it
Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol).
Question mark
Aug 12, 2020 If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery.Enter the firmware password to continue. Download the JDK.dmg file, jdk-12. Before the file can be downloaded, you must accept the license agreement. From either the browser Downloads window or from the file browser, double-click the.dmg file to start it.
Learn what to do if your Mac starts up to a question mark.
Blank (empty) screen
Learn what to do if your Mac starts up to a blank screen.
Apple logo
Learn what to do if your Mac starts up to an Apple logo or progress bar.
Globe with alert symbol
A globe with an exclamation point means that your Mac tried to start up from macOS Recovery over the Internet, but couldn't. Learn what to do if your Mac can't start up from macOS Recovery.
Lock icon
If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Enter the firmware password to continue.
System lock PIN code
Your Mac asks for a PIN code when it has been remotely locked using Find My. Enter the four-digit or six-digit passcode to continue.
Login window
At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.
Thunderbolt, USB, or FireWire symbol
A large Thunderbolt , USB , or FireWire symbol against a dark background means that your Mac is in target disk mode.
Learn more
- Learn what to do if your Mac displays a message that it restarted because of a problem.
- Learn what do do if your Mac continuously restarts.
- When starting up from Windows using Boot Camp, your Mac doesn't show an Apple logo or the other macOS screens in this article.
The following is an overview of useful information that we hope will help you to get NetBeans IDE up and running in Mac OS X.
System Requirements and Installation
For the minimum and recommended hardware configuration, see the NetBeans IDE 8.0 Release Notes.
For Mac OS X installation instructions, see the NetBeans IDE 8.0 Installation Instructions for Mac OS X.
Issues and FAQs
See the following documents for Mac-related issues and FAQs.
Shortcuts on Mac OS X
The IDE has a default set of keyboard shortcuts that you can use to invoke functions. In some cases, the default IDE shortcuts can conflict with default Mac OS shortcuts. In particular, some function keys used by the Mac OS are known to conflict with some default IDE shortcuts. If you find that some keyboard shortcuts are not behaving as expected, you can modify the shortcut for a particular IDE function by choosing NetBeans > Preferences (Cmd-,) from the main menu and clicking Keyboard in the Options window. You can modify the default Mac OS shortcut by opening System Preferences and clicking Keyboard & Mouse. For more, see the Apple Help topic Using function keys on portable computers.
For a list of NetBeans' Source Editor keyboard equivalents on Mac OS X, see the following table:
| Scrolling and Selecting | |
|---|---|
| Keys | Action |
| Cmd-[ | Moves the insertion point to the highlighted matching bracket. Note that this shortcut only works when the insertion point is located immediately after the opening bracket. |
| Cmd-Shift-[ | Selects the block between a pair of brackets. Note that this shortcut only works when the insertion point is located immediately after either the opening or closing bracket. |
| Ctrl-G | Jumps to any specified line. |
| Cmd-A | Selects all text in the file. |
| Modifying Text | |
|---|---|
| Keys | Action |
| Cmd-Shift-J | Opens the Internationalize dialog box that you can use to insert an localized string at the insertion point. |
| Code Folding | |
|---|---|
| Keys | Action |
| Cmd-Minus (-) | Collapses the block of code in which the insertion point is currently located. |
| Cmd-Plus (+) | Expands the block of code which is adjacent to the insertion point. |
| Cmd-Shift-Minus (-) | Collapses all blocks of code in the current file. |
| Cmd-Shift-Plus (+) | Expands all blocks of code in the current file. |
| Recording Macros | |
|---|---|
| Keys | Action |
| Cmd-J then S | Initiates the recording of key sequences for a macro. |
| Cmd-J then E | Stops the recording of key sequence for a macro and opens the Recorded Macro dialog enabling you to name the new macro. |
| Cutting, Copying, Pasting, and Deleting Text | |
|---|---|
| Keys | Action |
| Cmd-Z | Undo. Reverses a series of editor actions one at a time (excluding Save). |
| Cmd-Y | Redo. Reverses a series of Undo commands one at a time. |
| Cmd-X | Cut. Deletes the current selection and places it on the clipboard. |
| Cmd-C | Copy. Copies the current selection to the clipboard. |
| Cmd-V | Paste. Pastes the contents of the clipbard at the insert point. |
| Delete | Delete. Deletes the current selection. |
| Cmd-E | Deletes the current line. |
| Cmd-K | Copies the word preceding the insertion point and then pastes it after the insertion point (the insertion point must be in the whitespace preceeding or following a word). Press K multiple times to cycle through preceding words in succession. |
| Cmd-L | Copies the word following the insertion point and pastes it at the insertion point (the insertion point must be located in the whitespace preceeding or following a word.) Press L multiple times to cycle through consecutive following words. |
| Searching for Text | |
|---|---|
| Keys | Action |
| Cmd-G | Selects the next occurrence of the word found during the search. |
| Cmd-Shift-G | Selects the previous occurrence of the word found during the search. |
| Cmd-F | Opens the Find dialog box. |
| Cmd-R | Opens the Find and Replace dialog box. |
| Setting Tabs | |
|---|---|
| Keys | Action |
| Tab | Shifts all text to the right of the insertion point one tab stop to the right. |
| Cmd-T | Shifts text in the line containing the insertion point to the right one tab stop. |
| Cmd-D | Shifts text in the line containing the insertion point to the left one tab stop. |
| Modifying Code | |
|---|---|
| Keys | Action |
| Ctrl-Spacebar | Opens the Java code completion dialog box. |
| Shift-Enter | Enters the text that is selected in the code completion box into your file. |
| Ctrl-I | Opens the Insert Code pop-up menu. |
| Ctrl-Shift-I | Adds an import statement to the import section of the code when the cursor is over the class name to be imported. |
| Shift-Spacebar | Adds a space without checking for abbreviations to expand. |
| Using Bookmarks | |
|---|---|
| Keys | Action |
| Cmd-F2 | Sets or unsets a bookmark at the current line. |
| F2 | Goes to the next bookmark. |
Jdk Mac Install
Note:
For a complete list of NetBeans IDE keyboard equivalents, check the Keyboard Shortcuts Card by choosing Help > Keyboard Shortcuts Card. Alternately, you can reference the Keyboard Shortcuts section of the NetBeans IDE built-in Help.
You can access the Options window on Mac OS X by selecting NetBeans > Preferences (⌘-,) in the main menu.
Tips & Tricks
The following are some techniques you can use to get more out of NetBeans IDE on Mac OS X.
- To emulate right mouse click behavior.
Use Ctrl-click by pressing and holding the Control button while clicking. Also see issue #32463 regarding right-click emulation on multiple files.
- To specify which JDK to run NetBeans on.
Use the --jdkhome <path> option when starting NetBeans. <path> is the root of the JDK installation. The NetBeans installer looks for suitable JDK installations available on user's system and allows you to select the one you want to run NetBeans on. However, the setting may become obsolete when the user installs a new JDK later, or may be inconvenient if you want to run the IDE with another JDK. That's where the
--jdkhomeswitch comes in handy.Note: If you want to set the <path> option permanently, you can do so in the netbeans.conf file as described below.
- To make custom startup parameters permanent.
If you want NetBeans to always start with specific options such as --userdir, --jdkhome, --fontsize, etc., so that you don't have to type them on the command line at every launch, the most convenient way is to add your custom options directly to the NetBeans configuration (
netbeans.conf) file.To do this, Control-click the NetBeans application icon and choose Show Package Contents from the contextual menu. In the Finder window that appears, navigate to the
Contents/Resources/NetBeans/etc/directory, Control-clicknetbeans.conf, choose Open With from the contextual menu, and select your preferred text editor. Then add the custom parameters you wish to use and save your changes.The netbeans.conf file can include the following entries:
- netbeans_default_userdir: the default location and name of the userdir. Note that this entry is only valid in the global configuration file. It cannot be redefined in the local netbeans.conf file, because the launcher already needs to know the location of the userdir when the local netbeans.conf file is being processed.
- netbeans_default_options: any parameters passed to NetBeans or the JVM such as memory configuration parameters, debugging options, --fontsize, various experimental switches, etc.
- netbeans_jdkhome: the default location of the JDK to run NetBeans on. Note that this can be overridden with the --jdkhome switch.
Jdk 1.8 Mac
More Information
For more information, visit https://netbeans.org/.
You can also find news, articles, additional modules, and other useful information on the NetBeans project web site. Since NetBeans is an open-source project, the web site also provides access to source code, a bug database, information on creating your own NetBeans modules, and much more.
Free Jdk Download For Mac
Feedback
If you encounter any Mac OS X-specific problems, please let us know by filing a bug, but don't forget to specify that you are using the Mac OS X operating system.
You can also keep up to date on NetBeans IDE and interact with the NetBeans community by signing up for NetBeans project mailing lists at https://netbeans.org/community/lists/.