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Find lines from a file which are not present in another file [duplicate]
I have two files (let's say a.txt and b.txt ), both of which has a list of names. I have already run sort on both the files.
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Class JavaLaunchHelper is implemented in both. One of the two will be used. Which one is undefined [
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From what I've found online, this is a bug introduced in JDK 1.7.0_45. It appears to also be present in JDK 1.7.0_60. A bug report on Oracle's website states that, while there was a fix, it was removed before the JDK was rele...
How to validate GUID is a GUID
How to determine if a string contains a GUID vs just a string of numbers.
9 Answers
9
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Converting double to string
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double total = 44;
String total2 = String.valueOf(total);
This will convert double to String
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AttributeError: 'module' object has no attribute
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You have mutual top-level imports, which is almost always a bad idea.
If you really must have mutual imports in Python, the way to do it is to import them within a function:
# In b.py:
def cause_a_to_do_something():
import a
a.do_something()
Now a.py can safely do import b without cau...
How to Git stash pop specific stash in 1.8.3?
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git stash apply n
works as of git version 2.11
Original answer, possibly helping to debug issues with the older syntax involving shell escapes:
As pointed out previously, the curly braces may require escaping or quoting depending on your OS, shell, et...
CSS \9 in width property
What is the meaning of this? I am guessing it is a browser hack, but I have not been able to find what exactly it does.
4 A...
App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...处理类型上也有所不同。以“… Async”结尾的方法使用 AfterXmit 和 XmitFailure 事件确认发送消息。每次传输后都会触发 AfterXmit。如果您只对错误情况感兴趣，请使用 XmitFailure 事件，该事件在发生错误时也会触发。其他两种方法将...
How to comment lines in rails html.erb files? [duplicate]
...now the way to comment out a single line and also to comment out
a block of lines in *.html.erb files.
3 Answers
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App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希...
...126或ANSIX923
模式：AES加密方式，也可以是ECB，CBC，CTR，OFB或CFB
IV：AES加密IV，它必须是字符串值，并且其长度必须是16个字符，如果选择ECB加密模式，则不需要此值，否则必须设置此属性。
AesDecrypt
AES解密后使用属性AesKey...