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Default value of 'boolean' and 'Boolean' in Java
...fault values of boolean (primitive) and Boolean (primitive wrapper) in Java?
8 Answers
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BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...回调函数。 在JDK1.7中，这部分内容被称作NIO.2，主要在Java.nio.channels包下增加了下面四个异步通道：
AsynchronousSocketChannel
AsynchronousServerSocketChannel
AsynchronousFileChannel
AsynchronousDatagramChannel
其中的read/write方法，会返回一个带...
Maximum Java heap size of a 32-bit JVM on a 64-bit OS
...pproaching 4G on many Solaris systems.
(http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#gc_heap_32bit)
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What is the difference between Swing and AWT?
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AWT is a Java interface to native system GUI code present in your OS. It will not work the same on every system, although it tries.
Swing is a more-or-less pure-Java GUI. It uses AWT to create an operating system window and then pain...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
I'm working with some example java code for making md5 hashes. One part converts the results from bytes to a string of hex digits:
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Converting stream of int's to char's in java
...this is not what the OP is asking about. He is using Reader's read method: java.sun.com/j2se/1.4.2/docs/api/java/io/Reader.html#read() The question he is asking is how to convert value returned by this method into char.
– Vanuan
May 7 '09 at 21:43
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Java system properties and environment variables
... to access. System environment variables are accessible by any process and Java system properties are only accessible by the process they are added to.
Also as Bohemian stated, env variables are set in the OS (however they 'can' be set through Java) and system properties are passed as command line ...
Storing integer values as constants in Enum manner in java [duplicate]
...REATE.ordinal(). This would return 0. Probably this anwser is related to a java version, that didn't have this feature, yet.
– TheTrowser
Jul 1 '15 at 13:36
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Is there a difference between x++ and ++x in java?
Is there a difference between ++x and x++ in java?
16 Answers
16
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Change private static final field using Java reflection
...nd actually modify a private static final field.
Here's an example:
import java.lang.reflect.*;
public class EverythingIsTrue {
static void setFinalStatic(Field field, Object newValue) throws Exception {
field.setAccessible(true);
Field modifiersField = Field.class.getDeclaredField(...