大约有 43,000 项符合查询结果（耗时：0.0522秒） [XML]
Getting value of public static final field/property of a class in Java via reflection
...ssed to the get method is ignored entirely). Otherwise you can use getType and write an appropriate switch as below:
Field f = R.class.getField("_1st");
Class<?> t = f.getType();
if(t == int.class){
System.out.println(f.getInt(null));
}else if(t == double.class){
System.out.println(f....
How does Activity.finish() work in Android?
...on. The finish() operation will not even begin until you return control to Android.
share
|
improve this answer
|
follow
|
...
What is a “batch”, and why is GO used?
I have read and read over MSDN, etc. Ok, so it signals the end of a batch.
6 Answers
...
What is self-documenting code and can it replace well documented code? [closed]
...mments (Doxygen, JavaDoc, XML comments etc.) for every class, member, type and method AND
clearly comments any parts of the code that are not self-documenting AND
writes a comment for each block of code that explains the intent, or what the code does on a higher abstraction level (i.e. find all file...
in entity framework code first, how to use KeyAttribute on multiple columns
...ty map to a PK column. But how can I define a PK on more then one column, and specifically, how can I control order of the columns in the index? Is it a result of the order of properties in the class?
...
What is the difference between Hibernate and Spring Data JPA
What are the main differences between Hibernate and Spring Data JPA? When should we not use Hibernate or Spring Data JPA? Also, when may Spring JDBC template perform better than Hibernate / Spring Data JPA?
...
Calculate distance between two latitude-longitude points? (Haversine formula)
How do I calculate the distance between two points specified by latitude and longitude?
41 Answers
...
Large Numbers in Java
...
You can use the BigInteger class for integers and BigDecimal for numbers with decimal digits. Both classes are defined in java.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("2743561234");
reall...
Difference between abstraction and encapsulation?
What is the precise difference between encapsulation and abstraction?
39 Answers
39
...
C++0x has no semaphores? How to synchronize threads?
...
You can easily build one from a mutex and a condition variable:
#include <mutex>
#include <condition_variable>
class semaphore
{
private:
std::mutex mutex_;
std::condition_variable condition_;
unsigned long count_ = 0; // Initialized as ...