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Does Java have buffer overflows?
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Since Java Strings are based on char arrays and Java automatically checks array bounds, buffer overflows are only possible in unusual scenarios:
If you call native code via JNI
In the JVM itself (usually written in C++)
The interpreter or JIT compiler does not work correctly (Java byt...
What is the proper declaration of main?
...rn type, and what does it mean to return a value from main ? What are the allowed parameter types, and what are their meanings?
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Generic type conversion FROM string
...es" for another class. These properties simply have a name and a value. Ideally, what I would like is to be able to add typed properties, so that the "value" returned is always of the type that I want it to be.
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How to get the previous URL in JavaScript?
... submitting a form?). Specified by DOM Level 2. More here.
window.history allows navigation, but not access to URLs in the session for security and privacy reasons. If more detailed URL history was available, then every site you visit could see all the other sites you'd been to.
If you're dealing...
Show a number to two decimal places
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All the other answers are limited to decimal values with a dot notation. When you need to get 520,00 instead of 520.00, this simply works.
– SPRBRN
May 8 '14 at 15:06
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How do I resolve the “java.net.BindException: Address already in use: JVM_Bind” error?
...u are looking for, with -a and -p options, man netstat is your friend for all the rest :)
– sox with Monica
Jul 26 '17 at 20:38
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What is the meaning of “POSIX”?
... and I read it every time I encounter the term. The fact is that I never really understood what it is.
14 Answers
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How to do a recursive find/replace of a string with awk or sed?
... -type d -name .git -prune \) is an expression which completely skips over all directories named .git. You could easily expand it, if you use SVN or have other folders you want to preserve -- just match against more names. It's roughly equivalent to -not -path .git, but more efficient, because rathe...
Preventing console window from closing on Visual Studio C/C++ Console application
... (15.9.4) there is an option:
Tools->Options->Debugging->Automatically close the console
The corresponding fragment from the Visual Studio documentation:
Automatically close the console when debugging stops:
Tells Visual Studio to close the console at the end of a debugging session.
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Difference between jar and war in Java
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You add web components to a J2EE application in a package called a web application archive (WAR), which is a JAR similar to the package used for Java class libraries. A WAR usually contains other resources besides web components, including:
Server-side utility classes (database bean...