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When should you not use virtual destructors?
...vide the ability for a class to perform cleanup (e.g. delete memory, close files, etc...) AND also ensures the constructors of all its members gets called.
– user48956
May 12 '11 at 0:14
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What is 'Context' on Android?
...plication).
You can get the context by invoking getApplicationContext(), getContext(), getBaseContext() or this (when in a class that extends from Context, such as the Application, Activity, Service and IntentService classes).
Typical uses of context:
Creating new objects:
Creating new views, ad...
Difference between java.util.Random and java.security.SecureRandom
...d learn something on that (he encodes his user's password in a .lastlogin file, encoded with basic encryption using "passwordfile" as the key)
– Azulflame
Jun 18 '12 at 12:41
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Manifest merger failed : uses-sdk:minSdkVersion 14
...tion 3:
Remove/Comment <version>21.0.0-rc1</version> in your file <android-sdk>/extras/android/m2repository/com/android/support-v4/maven-metadata.xml
Repeat the same for support-v7
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RedHat 6 双网卡 TEAM - 更多技术 - 清泛网 - 专注C/C++及内核技术
...不需要任何switch(交换机)的支持。
1. 创建bound网卡
vi /etc/syconfig/network-scripts/ifcfg-bound0
DEVICE=bond0
BOOTPROTO=no
BROADCAST=10.0.2.255
IPADDR=10.0.2.168
NETMASK=255.255.255.0
NETWORK=10.0.2.0
ONBOOT=yes
USERCTL=no
GATEWAY=10.0.2.2
2. 修改网卡eth0...
Downloading all maven dependencies to a directory NOT in repository?
...through the same Maven dance as the OP and just wanted to retrieve the JAR file dependencies. Thanks! I wish I could +10
– Brandon
Mar 29 '14 at 3:01
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Releasing memory in Python
...eceiving large amounts of data, you'll want to use some other mechanism (a file, mmapped or otherwise; the shared-memory APIs in multiprocessing; etc.).
Sending large amounts of data between processes means the data have to be pickleable (or, if you stick them in a file or shared memory, struct-able...
Is there a shortcut to make a block comment in Xcode?
...anyone interested in doing this, watch WWDC 2016 session 414. Also, please file radars for API for plugins you'd like to write or see.
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rails i18n - translating text with links inside
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Separating text and link in locale.yml file works for a while but with longer text those are hard to translate and maintain as the link is in separate translation-item (as in Simones answer). If you start having many strings/translations with links you can dry it ...
What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get
... so the URL size limit shouldn't be a problem (unless you have really long file and folder names to your script!).
– Jonathon Bolster
Jan 13 '11 at 10:20
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