apple computer programs

Turn on the computer this morning and find one on the desktop. Ds_store file. But the appearance of inexplicable, also did not care, but after repeated deletion still appears. Later checked the information on the Internet, just know, yesterday I joined Git, in order to see. git this hidden system file entered some commands in the terminal.According to some online questions or information about the introduction, only know that this file belongs to the

tutorial on the use of the ping command for Apple Mac computer 1, first we want to open "terminal", in the Finder, open one click "Finder"-"Application" 2, find "utility" in the application, and use the left mouse button to click it into the "utility", utility in the right side of the window, compare the position below! 3, generally, in the "utility" of the list of tools in the penultimate

On the Apple Computer, every time you change the default boot system to enter the system settings, is very troublesome, today introduced a simple. 1. Turn on the computer, then press and hold the option button, then the Mac will enter the system selection interface. 2. After entering the system selection interface, if you want the Windows system as the d

Thinking logic of computer programs (79), thinking 79 In the previous section, we mentioned that in asynchronous task programs, a common scenario is that the main thread submits multiple asynchronous tasks and then processes the results if a task is completed, in this scenario, Java provides a convenient method for sending and distributing packets. The Completion

Thinking logic of computer programs (30), thinking Logic The previous section introduced the String, and mentioned that if String modification operations are frequent, StringBuilder and StringBuffer classes should be used. The methods of these two classes are basically the same, and their implementation code is almost the same, the only difference is that StringBuffer is thread-safe, while StringBuilder is

The MySQL service on the local computer is stopped after it is started. Some services will be automated when they are not used by other services or programs, and other mysql services Re-install the MySQL database. Due to the sloppy installation, all the way to next (in fact, strict configuration is required in some places and I forgot to pay attention to it), it is a lot of trouble now. Error message: Th

We often encounter open application prompts "Do you want to allow the following programs to make changes to this computer?" "If we do not like this much, then how to close the tip of the tube, specifically as follows." 1. Right-click the Start menu, as follows.2. Click on the "Control Panel" option to enter the Control Panel management.3. Click on the "User account and Home security" option, as shown below

then sleeps for a while, then sets shutdown to true and finally outputs "exit main".The expected result is that all two threads exit, but actually executes, it is likely to be found that Hellothread never exits, that is, in the Hellothread execution flow, shutdown is always false, even if the main thread has changed to true.What's going on here? This is the memory visibility issue. In a computer system, in addition to memory, the data is also cached

Thinking logic of computer programs (59) and thinking 59 The previous two sections show you how to read and write file content through a stream. This section describes operations on file metadata and directories. File and directory operations are ultimately related to the operating system and file system. The implementations of different systems are different, but Java. io. the File class provides a unified

Press "Command+s" when booting up. A single user model is entered. The single user mode of MAC OS has access privileges (root access privilege) without requiring a root password (root password). A prompt like Dos #root > appears. Gradually enter the following command under #root>, note that spaces are case-sensitiveFirst step: Perform hard drive detection (read only), this step can be omitted/sbin/fsck-yStep two: Load the file system (read/write)/sbin/mount-uawStep three: Delete OSX generated hi

Http://www.myexception.cn/operating-system/1636963.htmlThe steps are as follows:1. Start Terminal Terminal (if you already have a. bash_profile file under the current User folder, skip directly to 5)2. Go to the current user's HOME directory (command line input echo $HOME)3. Create a. Bash_profile (command line Input touch. Bash_profile)4. Open the. bash_profile file (command line input open-e. bash_profile)5. Edit the. bash_profile fileEnter in the. bash_profile fileExport path=/users/jiandan/d

1. As shown in the image below we will have an Apple icon on the left side of the computer, click on it and click on [about this machine] as shown in the Drop-down menu. 2. Then we click on the open interface of the [more Info] button to enter 3. Click on the Open Interface [System report] details below 4. Left choice [Network]-[location] 5. Then we will see the detai

Specific steps One: If you are an XP system we click on the Start menu of the computer, such as "Start"-"Run", If you are a WIN7 and WIN8 user, press the keyboard's Windows key +r, and open the Run window as shown Two: Then we enter services.msc in the Run window and open "service" Three: In the application service we find the Apple Mobile Device, select the right button, select "Properties" Four

First, preparatory work 　　1, software requirements ⑴win7 installation version of the ISO image (recommended to use genuine, if you can not download other versions, address asked Baidu) ⑵windows 7 USB DVD Download Tool (used to make WIN7 installation disk, download address asked Baidu) ⑶REFIT.DMG (used to display the Select Startup disk when Air starts) 　　2, hardware requirements: ⑴4G more than a U disk (for the production of WIN7 installation disk), more than 1G u disk one (for storage WIN

1. This method requires you to install a virtual machine system on Apple, I use the vmawre Fusion virtual machine. Specific virtual machine installation procedures are not introduced here, the small wifi and Mac computer connection, start the virtual machine, the small WiFi to the virtual machine system. Click the "USB and Bluetooth" option under the "Virtual Machine" menu at the top of the screen, and then

Immediately is Christmas, in order to let the festive atmosphere more strong, today PC6 small compilation to teach you Mac User A very interesting skill, let your Mac float white snowflakes, below with small weave together to see! For Apple Mac Computer "terminal" applications, may not be used in peacetime, so it should be more unfamiliar. In fact, this terminal application is used to allow users to direct

A few days ago PC6 small part of a colleague's own MacBook Battery forgot to charge, the computer suddenly shut down, and then power on the WiFi can not open, tried the online those unreliable method after invalid. To find a small part of my help to solve, small series finally in a foreign forum to find a way to successfully solve the Apple laptop WiFi can not open the fault, the following to share this met

1 first go to the Apple website to download the latest version of itunes installed on the computer. Or directly Baidu search "itunes download." itunes is when your device is connected to your computer, the computer's hardware is driven, and only when the computer is installed ITUNES,IPAD5 is connected to the

Thinking logic of computer programs (80) and thinking 80 This section describes scheduled tasks. There are many application scenarios for scheduled tasks, such: An alarm program or task reminder. You can call a bed at a specified time or return a credit card on a specified date. The monitoring system collects system data at intervals to trigger alarms for abnormal events. Statistical System, which usual

Thinking logic of computer programs (78) and thinking 78 In the previous section, we initially discussed the task execution service in Java and package. In reality, the main implementation mechanism of the task execution service is the thread pool. In this section, we will discuss the thread pool. Basic Concepts A thread pool, as its name implies, is a thread pool. There are several threads in it. They are