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How to use the TextWatcher class in Android?
...int start, int before, int
count) {
if (isFirstTimeChange) {
return;
}
if (s.toString().length() > 0) {
try {
currentValue = new BigDecimal(s.toString().replace(".", "").replace(',', '.'));
...
ATL COM开发入门（二）（ActiveX/COM组件回调JS） - C/C++ - 清泛网 - 专注C/C++及内核技术
...？二是ATL是无窗口的如何使用定时器（MFC一般的定时器SetTimer、OnTimer都是CWnd的成员）？
MSDN提供了ATL直接获取前台IHTMLDocument2对象的方法，但是写得很不够详细，详见《获得ActiveX控件所在网页的对象模型》，不过笔者没有调试...
What is console.log?
...
Imho, better than checking every time if console.log is available is better to have something like this:if(typeof(console) == 'undefined') { console = {'log': function() {return}} } In such case you can write console.log every time you need without check...
How can I hash a password in Java?
...
You can actually use a facility built in to the Java runtime to do this. The SunJCE in Java 6 supports PBKDF2, which is a good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, ...
How to rsync only a specific list of files?
...'s answer below is better. Please use that one!
You might have an easier time, if you're looking for a specific list of files, putting them directly on the command line instead:
# rsync -avP -e ssh `cat deploy/rsync_include.txt` root@0.0.0.0:/var/www/
This is assuming, however, that your list i...
How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
...
You can use the getters of java.time.LocalDateTime for that.
LocalDateTime now = LocalDateTime.now();
int year = now.getYear();
int month = now.getMonthValue();
int day = now.getDayOfMonth();
int hour = now.getHour();
int minute = now.getMinute();
int secon...
How do I create a Java string from the contents of a file?
I've been using the idiom below for some time now. And it seems to be the most wide-spread, at least on the sites I've visited.
...
How to read a file into a variable in shell?
...und adding trailing characters is great, but after using it for quite some time I decided I needed a solution that didn't use command substitution at all.
My approach now uses read along with the printf builtin's -v flag in order to read the contents of stdin directly into a variable.
# Reads stdin ...
使用模拟器构建应用程序 · App Inventor 2 中文网
...r and run the command
run-emulator.
Be patient: The emulator takes a long time to start, even a minute or more. That’s because it’s booting up the virtual phone from scratch.
The emulator will appear in its own window on your computer. As you work, you’ll need to switch among the emulator wi...
How to get a list of current open windows/process with Java?
... list from the command "ps -e":
try {
String line;
Process p = Runtime.getRuntime().exec("ps -e");
BufferedReader input =
new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
System.out.println(line); //<--...