Student std = new Student();
var net = require('net');
var server = net.createServer(function(socket) {
socket.write('hello\n');
socket.end('world\n');
});
server.listen(8000);
telnet localhost 8000 nc localhost 8000 hello world
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(3000, '127.0.0.1');
console.log('Server running at http://127.0.0.1:3000/');
curl http://localhost:3000 Hello World
When you run this target, it will say "[java] Listening for transport dt_socket at address: 5432", and stop here for you to debug....
select TO_DATE(sysdate, 'dd/mm/yyyy') from dual
select TO_CHAR(sysdate, 'MM/DD/YYYY') from dual;
select sysdate from dual;
select * from myTable where DTTMCREATED BETWEEN TO_DATE('09/20/2012','mm/dd/yyyy') AND TO_DATE('09/21/2012','mm/dd/yyyy')
/* as it's case insensitive in sql, so MM==mm
Oracle use mi to replace mm, and hh24 to represent use 24 hours format. */
select username, account_status from dba_users; alter user HAIBO_JPMC identified by my_pass;
public class BillingModule extends AbstractModule
{
@Override
protected void configure()
{
bind(TransactionLog.class).to(DatabaseTransactionLog.class);
bind(CreditCardProcessor.class).to(PaypalCreditCardProcessor.class);
bind(BillingService.class).to(RealBillingService.class);
}
}
public class RealBillingService implements BillingService
{
private final CreditCardProcessor processor;
private final TransactionLog transactionLog;
@Inject
public RealBillingService(CreditCardProcessor processor, TransactionLog transactionLog)
{
this.processor = processor;
this.transactionLog = transactionLog;
}
....
}
public static void main(String[] args)
{
Injector injector = Guice.createInjector(new BillingModule());
BillingService billingService = injector.getInstance(BillingService.class);
...
}
, clickingControl Panel, clicking System and Maintenance, and then clickingPerformance Information and Tools.
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import org.apache.commons.codec.binary.Base64;
String strTobeEncoded = "This is message body which will be 64 encoded";
String strTobeDecoded = "VGhpcyBpcyBtZXNzYWdlIGJvZHkgd2hpY2ggd2lsbCBiZSA2NCBlbmNvZGVk";
String encodedResult = "";
String decodedResult = "";
try
{
// encoding using sun.misc.BASE64Encoder;
BASE64Encoder encoder = new BASE64Encoder();
encodedResult = encoder.encode(strTobeEncoded.getBytes());
System.out.println("Encoded by Sun's encoder: " + encodedResult);
// decoding using sun.misc.BASE64Encoder;
BASE64Decoder decoder = new BASE64Decoder();
decodedResult = new String(decoder.decodeBuffer(strTobeDecoded));
System.out.println("Decoded by Sun's decoder: " + decodedResult);
// encoding using org.apache.commons.codec.binary.Base64;
encodedResult = new String(Base64.encodeBase64(strTobeEncoded.getBytes()));
System.out.println("Encoded by Apache's encoder: " + encodedResult);
// encoding using org.apache.commons.codec.binary.Base64;
decodedResult = new String(Base64.decodeBase64(strTobeDecoded.getBytes()));
System.out.println("Decoded by Apache's decoder: " + decodedResult);
}
catch (Exception e)
{
}
long startTime = System.currentTimeMillis();
System.out.println("start getting super session: " + startTime);
long endTime = System.currentTimeMillis();
System.out.println("end getting super session: " + endTime);
System.out.println("time taken in seconds: " + (endTime - startTime)/1000);
System.out.println("time taken in mill seconds: " + (endTime - startTime));
| Letter | Date or Time Component | Presentation | Examples |
|---|---|---|---|
G | Era designator | Text | AD |
y | Year | Year | 1996; 96 |
M | Month in year | Month | July; Jul; 07 |
w | Week in year | Number | 27 |
W | Week in month | Number | 2 |
D | Day in year | Number | 189 |
d | Day in month | Number | 10 |
F | Day of week in month | Number | 2 |
E | Day in week | Text | Tuesday; Tue |
a | Am/pm marker | Text | PM |
H | Hour in day (0-23) | Number | 0 |
k | Hour in day (1-24) | Number | 24 |
K | Hour in am/pm (0-11) | Number | 0 |
h | Hour in am/pm (1-12) | Number | 12 |
m | Minute in hour | Number | 30 |
s | Second in minute | Number | 55 |
S | Millisecond | Number | 978 |
z | Time zone | General time zone | Pacific Standard Time; PST; GMT-08:00 |
Z | Time zone | RFC 822 time zone | -0800 |
package
{
import flash.filesystem.File;
public class UserUtil
{
public static function get currentOSUser():String
{
var userDir:String = File.userDirectory.nativePath;
var userName:String = userDir.substr(userDir.lastIndexOf(File.separator) + 1);
return userName;
}
}
}
System.out.println(System.getProperty("user.name"));
java.net.InetAddress localMachine = java.net.InetAddress.getLocalHost();
System.out.println(localMachine.getHostName());
export jira="https://jira.dovetail.net/browse/BUG-"2. Make it effective:
source .bashrc3. under /home/hliu/bin, create file named as "jira":
cygstart "$jira$1"4. Make it executable:
dos2unix jira chmod 755 jira5. Now from cygwin, you could type:
public static void copyFile(File sourceFile, File destFile) throws IOException
{
if (!destFile.exists())
{
destFile.createNewFile();
}
FileChannel source = null;
FileChannel destination = null;
try
{
source = new FileInputStream(sourceFile).getChannel();
destination = new FileOutputStream(destFile).getChannel();
destination.transferFrom(source, 0, source.size());
}
finally
{
if (source != null)
{
source.close();
}
if (destination != null)
{
destination.close();
}
}
}
Link
public boolean XStream2XML(List importEntryList, String strOutXMLFilePath)
{
XStream xs = new XStream();
//by default, xstream will use class's full name
//you could use alias to avoid that
xs.alias("entryList", List.class);
xs.alias("importentry", ImportEntry.class);
xs.alias("attribute", Attribute.class);
try
{
FileOutputStream fs = new FileOutputStream(strOutXMLFilePath);
xs.toXML(importEntryList, fs);
//a simpler version
//String xml = xs.toXML(importEntryList);
fs.close();
}
catch (Exception e1)
{
//e1.printStackTrace();
return false;
}
return true;
}
2) Example of converting XML back to Java Object
String xml = "......"; Person newJoe = (Person)xstream.fromXML(xml);
String resource = "/log4j.properties"; // / is necessary
URL configFileResource = Log4JTest.class.getResource(resource);
PropertyConfigurator.configure(configFileResource);
log4j.properties
#default one
log4j.rootLogger=DEBUG, A1
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%p [%t] %c{2} (%M:%L) - %m%n
#under package example
log4j.logger.example=INFO, A2
log4j.appender.A2=org.apache.log4j.FileAppender
log4j.appender.A2.File=${user.home}/test.txt
log4j.appender.A2.layout=org.apache.log4j.PatternLayout
log4j.appender.A2.layout.ConversionPattern=%5r %-5p [%t] %c{2} - %m%n
-vmargs -Xms256m -Xmx512m -XX:MaxPermSize=256m -XX:PermSize=64m
//retrieve keys
for (var key:String in obj)
{
trace(key);
}
//retrieve values
for each(var value:String in obj)
{
trace(value);
}
import mx.utils.ObjectUtil; trace(ObjectUtil.toString(obj));This will print out the content of the object very neatly.
