Apple produces a competing line of computers to the PCs called the Macintosh.
The Mac computer was named after the popular McIntosh variety of apple tree. However, presumably for legal reasons, Apple deliberately misspelled the name as Macintosh. If you correct the spelling to McIntosh (the tree and also a stereo component maker) or Mackintosh (the toffee maker), Mac users will treat you as if you had defecated on the floor, ditto if you abbreviate its name to MAC instead of Mac.
The original Macs used the Motorola 68000 series of CPUs. Then Apple switched to using the IBM (International Business Machines) PowerPC RISC (Reduced Instruction Set Computer) CPU (Central Processing Unit). All the currently manufactured Macintoshes now use Intel CPU s, the same as used in Windows and Linux/Ubuntu machines.
Unfortunately, the Power PC Mac (OS X 10.4.11) does not support version 1.6 of Java, just 1.5.Java version 1.6 is available only for the new 64-bit Intel-based Macs running Snow Leopard (OS X 10.6). Apple supplies the JVM (Java Virtual Machine), not Sun. Last revised/verified: 2010-02-17 JVM, not Sun. Last revised/verified: 2010-02-17 Java version 1.6 is available only for the new 64-bit Intel-based Macs running Leopard (OS (Operating System) X 10.5). Snow Leopard is the preview of the OS X 10.6 expected out approximately 2009-01. Apple supplies the JVM, not Sun. Last revised/verified: 2008-11-22
The default environment for apps run from Finder or LaunchServices includes the variables HOME, SHELL, PATH, TMPDIR, USER, and LOGNAME, along with a few that appear to be specific to Apple’s JAR launcher. Apps launched from a shell inherit the shell’s environment, as usual.
To account of the different ways to request a menu popup, MouseEvent. isPopoupTrigger() will occur when somebody right clicks on a PC (Personal Computer) mouse or presses the single Mac mouse button with the control key down.
Modern Macs use \n as the line terminator, a sign of its BSD (Berkeley Software Distribution) Unix heritage. Legacy Mac software may use \r or even Windows-style \r\n. So long as you use Java’s platform-independent tools for line separator, you should be ok.
static String fileSeparatorChar = File.separatorChar; static String lineSeparator = System.getProperty ( "line.separator" ); static String nameSeparator = File.separator; /* always 1 long */ static String nameSeparatorChar = File.separatorChar; static char pathSeparatorChar = File.pathSeparatorChar;
The version of Java used to run apps can be changed from the Java Preferences, which is in /Applications/Utilities/Java. The section for Java Application Runtime Settings applies to Java applications, JNLP (Java Network Launching Protocol) (Web Start) apps, and applets launched via Java Web Start. It also changes the default compiler version and JRE (Java Runtime Environment) libraries used at compilation
The Apple JDK (Java Development Kit) and Java Runtime includes libraries for interfacing with some of the OS, including QuickTime and parts of the NSApplication framework. The Application class in combination with OS X-specific packaging (Bundles, with an Info.plist file, documented in the FAQ (Frequently Asked Questions)) can make Java apps act very much like native apps. Apple also maintains a FAQ for Java on the Mac Platform at which includes items on using the NSApplication pieces portably.
Apps launched via Finder or LaunchServices will have standard output and standard error written to /var/log/system.log, viewable in the Console application. Apps launched from a shell have standard input, output, and error connected to the shell, as usual. It is not possible to view the Applet log unless there is an error.
The Macintosh keyboard is slightly different from a PC keyboard.
|caps lock ⇪||Capslock|
|control ^||Control||In Java, depending on the look & feel selected, the control key might be used for copy/paste instead of the command key. Like the PC Ctrl key.|
|alt option||Option||aka Alt, Alternative. The option entity ⌥ ⌥ is not well supported.|
|Apple symbol||Apple entity is  or  Only supported in Mac fonts.|
|⌘||Command||aka open Apple, clover. Used for copy/paste. The four lobed clover entity (officially called a place of interest sign) is ⌘|
|blank||Space||long unlabelled bar|
|return ⏎||Return||Like Enter on the PC|
|delete||Delete back||delete chars to the left, like PC Backspace|
|delete||Delete forward||delete chars to the right, like PC Del. The delete forward entity ⌦ ⌦ is not well supported.|
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