Problem descriptionProblem with SDK Manager updateFailed to fetch URL Https://dl-ssl.google.com/android/repository/repository-6.xml, reason:connection to https:// Dl-ssl.google.com refusedFailed to fetch URL http://dl-ssl.google.com/android/repository/addons_list-1.xml, reason:connection to/HTTP Dl-ssl.google.com refusedFailed to fetch URL https://dl-ssl.google.com/android/repository/addons_list-1.xml, reason:hostname in Certificate Didn ' t match: Unable to resolve https://dl-ssl.google.com/and
JDK Download:1http://www.oracle.com/technetwork/java/javase/downloads/index.html2 Configuring environment variablesjava_home: create. The value is: The JDK's installation path on your computer.PATH: edit. The value is:%java_home%\bin.CLASSPATH : Edit. Configure two values with a value of:.; %java_home%\lib\tools.jar(where the first value indicates that the JVM First searches the current directory). 3 Test VariablesOpen cmd, enter command Java–version and Javac, and if return information is pres
JNI is the interface for Android to call the library written in C ++. The difference between C ++ and Java is not discussed in this article. In addition, it only records how to build the environment.
First, download the ADT package and the ndk package.
The ADT package contains eclipse, so you do not need to install eclipse.
After installation, there are two methods to compile the JNI project.
One way is
Cannot obtain ADT by configuring Android Development Environment eclipse
After installing Android SDK eclipse to get ADT, but due to the existence of GFW, eclipse often cannot get anything from the http://dl-ssl.google.com/android/eclipse. The solution is as follows:
In the past, installing ADT was not a problem at all, but now it is a big problem. Unicom'
Build Android + NDK development environment in Windows (JDK [8u45] + Eclipse + Android SDK [r24.1.2] + ADT + NDK [r10d]) and ndk8u45
1. Build an Android Development Environment
1. Install JDK.(1) Introduction: JDK, Java Development Kit, is a Java software Development Kit. JRE, namely, Java Runtime Environment, is the Java Runtime Environment and is intended for Java users rather than developers.
(2) download: click on the link (oracle )), select the
For more information about cp commands-general Linux technology-Linux technology and applications, see the following. [I = s] This post was last edited by yanyongkg
Read the masterpiece of laruence again, and have some questions about the cp command.
1) cp-s in the book: link files, same as ln usage
Here is my experiment (centos5.4 'uname-a' = 2.6.18-164. el5 )
Run the cp command in Centos to indicate that the folder is skipped.
When copying a folder to another folder today, cp./res/usr
When a problem occurs, the prompt is:
Cp skipped the folder
Then I looked for it.
I searched the internet for the usage of the CP command:
CP com
I am used to the cp, rm, mv, and other commands in freebsd to directly overwrite files of the same name, but in linux (not necessarily all, maybe I use several ), when you use the cp/rm/mv command to overwrite a file, the system always prompts "yes" or "no". It is very troublesome. If you have one or two files, you can forget it. However, when copying a large number of files, this is troublesome. You need t
CP command: cp-copy files and directories"Function" copy function, commonly used to do service configuration file backupCP means copy, is the copy of the abbreviation, copy the file and the intention to rename the file, when copying multiple files, the target must be an existing directory, or the copy process will be error, theinstall command here does not describe the usage can be viewed The man document,
When the CP is copied, if it encounters a file with the same file name, it will ask whether or not to overwrite and let you enter Yes or No. Why? This is for Linux. For security reasons, aliases are used on the CP command. That is, you enter only the CP command, in fact, you enter the system is "cp-i." The i is the int
During CP overwriting in RedHat, No matter what parameter-F is added or whether the request is overwritten or not, this is intolerable when writing scripts or a large number of CP overwriting operations...
Try to explain this problemCreate an experiment environment:[Root @ devdb ~] # Mkdir-P testing/1111
[Root @ devdb ~] # Mkdir-P testing/2222
[Root @ devdb ~] # Touch test/1111/aaa.txt
The directory structu
Linux cp/rm/mv mandatory overwrite, linuxcp1. cp/rm/mv force overwrite in Linux (1) and backslash (\) temporarily cancel alias
[root@fz ~]# \cp filename new/filename [root@fz ~]#(2) unalias cancelling aliases
Note: This is only temporary cancellation of the cp alias, not permanent
[root@localhost ~]# unal
Typically, when you use CP-RF to manage files or folders, you are generally no longer reminded of overwriting. However, the use of CP-RF on a single machine in the intranet indicates whether or not to overwrite. Is it different from the usual commands?[Email protected] test]# cp-rf/files/./bak/CP: Do you want to overwr
CP (option) (parameter) copyWhen copying multiple source files, the target must be a directory.The CP command uses the-I option by default, and when the target already has a file, asks the user if it is overwritten, and can use \CP to cancel the-i option-A: Copies all the properties of the file, which are used to archive the file. , and then archive the compresse
Linux cp command-Linux general technology-Linux programming and kernel information. The following is a detailed description. Cp: copy operation
The cp command, that is, the copy command, is used to copy files or subdirectories. This command has nearly 40 command line parameters. Currently, I only want to learn the most common ones.
$
When managing files and directories in Linux, CP (copy), MV (move), (remove) are the three most common commands, so what are the specific uses of these three commands?Copy files or directories: CPThe main function of the CP command is to copy a file or directory whose command syntax is:CP [OPTION] ... [-T] SOURCE DESTCP [OPTION] ... SOURCE ... DIRECTORYCP [OPTION] ...-t DIRECTORY SOURCE ...As can be seen, f
CP Replication
CP source file path Directory file path[Root@zabbix_agentd ~]# CP./1.sh/tmp/[Root@zabbix_agentd ~]# CP./1.sh/tmp/2.sh
As shown above, the first CP./1.sh/tmp/, copy the current directory under 1.SH to TMP is still called 1.sh,Second
The SCP is secure copy, a command that is used to remotely copy files under a Linux system. The CP command is similar to it, but the CP is only copied on the local computer and not across the server, and the SCP transport is encrypted.Cp-is mainly used on the same computer, in different directories between the copy files.scp-is a secure remote file copy command based on SSH login under Linux. The SCP comman
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