大约有 9,000 项符合查询结果（耗时：0.0480秒） [XML]
Why does flowing off the end of a non-void function without returning a value not produce a compiler
...ng so it doesn't force you to put a return at the bottom of the function.
javac, on the other hand, tries to verify that all code paths return a value and throws an error if it cannot prove that they all do. This error is mandated by the Java language specification. Note that sometimes it is wrong ...
Why must jUnit's fixtureSetup be static?
...der of methods in the .class file is unspecified/compiler-dependent (IIRC, Java's reflection API returns the methods in the same order as they are declared in the .class file, although also that behaviour is unspecified - I have written a library for actually sorting them by their line numbers).
So...
ArrayIndexOutOfBoundsException when using the ArrayList's iterator
...String s : arrayList)
if (s.equals(value))
// ...
As for
java.lang.ArrayIndexOutOfBoundsException: -1
You just tried to get element number -1 from an array. Counting starts at zero.
share
|
...
Trim a string based on the string length
...
StringUtils.abbreviate from Apache Commons Lang library could be your friend:
StringUtils.abbreviate("abcdefg", 6) = "abc..."
StringUtils.abbreviate("abcdefg", 7) = "abcdefg"
StringUtils.abbreviate("abcdefg", 8) = "abcdefg"
StringUtils.abbreviate("abcdefg", 4) = "a.....
Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
...turn something like in 2 months etc.
you can use localization to get other languages and the pluralization works fine
if you will start using Carbon for other things working with dates will be as easy as never.
share
...
How to reload a clojure file in REPL
... before loading the new code.
myapp.web=> (refresh)
CompilerException java.lang.RuntimeException: Unable to resolve symbol: refresh in this context, compiling:(/private/var/folders/ks/d6qbfg2s6l1bcg6ws_6bq4600000gn/T/form-init819543191440017519.clj:1:1)
You could use the fully qualified var n...
What is difference between functional and imperative programming languages?
...ct-oriented programming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programming?
...
The Definitive C Book Guide and List
...nd Rob Pike (1999). A very good book to accompany K&R. It uses C++ and Java too.
C Traps and Pitfalls by A. Koenig (1989). Very good, but the C style pre-dates standard C, which makes it less recommendable these days.
Some have argued for the removal of 'Traps and Pitfalls' from this list b...
Placeholder in IE9
...<!--[if lt IE 7]><html class="no-js lt-ie10 lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
<!--[if IE 7]><html class="no-js lt-ie10 lt-ie9 lt-ie8" lang="en"> <![endif]-->
<!--[if IE 8]><html class="no-js lt-ie10 lt-ie9" lang="en"> <![endif]-->
<...
C++ performance vs. Java/C#
...e to run on a particular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told ...