大约有 7,486 项符合查询结果（耗时：0.0374秒） [XML]
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...tic typing of variables.
That said, many languages and platforms, such as Java (with its Java Virtual Machine) and .NET (with its Common Language Runtime) have improved performance over the years with advents such as just-in-time compilation which produces native machine code from bytecode to achie...
What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
...add that for multidimensional arrays that might have an arbitrary shape in Java, the nested loops should check for the relevant subarray length: for (int nestedIndex = 0; nestedIndex < array[outerIndex].length; nestedIndex++) { ... array[outerIndex][nestedIndex] ... }.
– And...
MySQL ON vs USING?
...le has 3 rows:
| post_id | title |
|---------|-----------|
| 1 | Java |
| 2 | Hibernate |
| 3 | JPA |
and the post_comment child table has the 3 records:
| post_comment_id | review | post_id |
|-----------------|-----------|---------|
| 1 | Good ...
STL or Qt containers?
...when using meta-types or signals and slots.
can use STL-style iterators or Java-style iterators
are streamable with QDataStream
are used extensively in Qt's API
have a stable implementation across operating systems. A STL implementation must obey the C++ standard, but
is otherwise free to do as it p...
How can I convert byte size into a human-readable format in Java?
How can I convert byte size into a human-readable format in Java?
25 Answers
25
...
How to deserialize a list using GSON or another JSON library in Java?
...use new TypeToken<List<Video>>(){}.getType() ? How is it legal java syntax?
– Maxim Veksler
Dec 10 '10 at 0:29
9
...
Determine if a String is an Integer in Java [duplicate]
...eturn false;
}
return true;
}
Alternatively, you can rely on the Java library to have this. It's not exception based, and will catch just about every error condition you can think of. It will be a little more expensive (you have to create a Scanner object, which in a critically-tight loop ...
Why is the Android test runner reporting “Empty test suite”?
...lved it by "right-clicking" on the test-file and hit "compile file ...Test.java". After that I could run single tests again.
share
|
improve this answer
|
follow
...
Java: how can I split an ArrayList in multiple small ArrayLists?
...le loop through the sublists, you will get a concurrent exception, because java doc stats : The outer list is unmodifiable, but reflects the latest state of the source list. The inner lists are sublist views of the original list. This is
– Junchen Liu
Mar 2 '15...
Match whitespace but not newlines
...eason, Perl \h differs from POSIX blank ([[:blank:]] in Perl, \p{Blank} in Java) and Java 8 \h. Admittedly, it's an edge case.
– Aleksandr Dubinsky
Feb 3 '16 at 18:07
...