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how to check the jdk version used to compile a .class file [duplicate]
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You're looking for this on the command line (for a class called MyClass):
On Unix/Linux:
javap -verbose MyClass | grep "major"
On Windows:
javap -verbose MyClass | findstr "major"
You want the major version from the results. Here are some example va...
PHP大潮将至 PHP近年发展分析 - 创意 - 清泛网 - 专注C/C++及内核技术
...PHP的工程师需求量都大幅度提高。PHP在国内的官方PHPChina.com网站透露，目前的在京PHP工程师的待遇的平均值可以比ASP工程师的高出一倍。
那么，为什么PHP可以在近年来发展如此迅速呢。其实跟Web的迅猛发展是紧密联系在一起的...
Most efficient way to store thousand telephone numbers
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http://en.wikipedia.org/wiki/Acyclic_deterministic_finite_automaton
I once had an interview where they asked about data structures. I forgot "Array".
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Unfortunately MyApp has stopped. How can I solve this?
...application quit because an uncaught RuntimeException was thrown.
The most common of these is the NullPointerException.
How to solve it?
Every time an Android application crashes (or any Java application for that matter), a Stack trace is written to the console (in this case, logcat). This stack t...
Keep CMD open after BAT file executes
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Depending on how you are running the command, you can put /k after cmd to keep the window open.
cmd /k my_script.bat
Simply adding cmd /k to the end of your batch file will work too. Credit to Luigi D'Amico who posted about this in the comments below.
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How do I change screen orientation in the Android emulator?
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See developer.android.com/guide/developing/tools/…
– Mirko N.
Jan 2 '10 at 13:59
20
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How to upgrade rubygems
...gem install rubygems-update
update_rubygems
gem update --system
run this commands as root or use sudo.
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Python executable not finding libpython shared library
... Can you debug the application successfully when you run gdb from the command line and LD_LIBRARY_PATH is set up properly in the terminal? If not, you will probably have to set up LD_LIBRARY_PATH in your .gdbinit file. See this answer for more info: stackoverflow.com/a/7041845/156771
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How do I create a Java string from the contents of a file?
... StandardCharsets.US_ASCII);
For versions between Java 7 and 11, here's a compact, robust idiom, wrapped up in a utility method:
static String readFile(String path, Charset encoding)
throws IOException
{
byte[] encoded = Files.readAllBytes(Paths.get(path));
return new String(encoded, encoding...
UPDATE and REPLACE part of a string
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I just found the solution :) ===> stackoverflow.com/questions/4341613/…
– Owidat
Dec 10 '14 at 2:26
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