Example :-
package jdevelopersguide.lab;
import java.util.Date;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
public class ConvertToDate {
/**
* @param args
*/
public static void main(String[] args) {
String date="2015-04-07";
DateTime jodaTimeDate=DateTimeFormat.forPattern("yyyy-mm-dd").parseDateTime(date);
System.out.println("Joda Time Date is::"+jodaTimeDate);
//Convert Joda DateTime to Java Date
Date javaDate=jodaTimeDate.toDate();
System.out.println("Converted Java Date is:::"+javaDate);
//Convert Java Date to String
String convertedDate=DateTimeFormat.forPattern("dd-mm-yyyy").print(javaDate.getTime());
System.out.println("Converted Java Date to String::::"+convertedDate);
}
}
Output :-
Joda Time Date is::2015-01-07T00:04:00.000+11:00
Converted Java Date is:::Wed Jan 07 00:04:00 EST 2015
Converted Java Date to String::::07-04-2015
Symbol Meaning Presentation Examples
------ ------- ------------ -------
G era text AD
C century of era (>=0) number 20
Y year of era (>=0) year 1996
x weekyear year 1996
w week of weekyear number 27
e day of week number 2
E day of week text Tuesday; Tue
y year year 1996
D day of year number 189
M month of year month July; Jul; 07
d day of month number 10
a halfday of day text PM
K hour of halfday (0~11) number 0
h clockhour of halfday (1~12) number 12
H hour of day (0~23) number 0
k clockhour of day (1~24) number 24
m minute of hour number 30
s second of minute number 55
S fraction of second number 978
z time zone text Pacific Standard Time; PST
Z time zone offset/id zone -0800; -08:00; America/Los_Angeles
' escape for text delimiter
'' single quote literal '
ConcurrentMap as a key or value happen-before actions subsequent to the access or removal of that object from the ConcurrentMap in another thread.
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
TestInterface2 interObj=new InterfaceObject();
try{
interObj.display();
}catch(Exception e){
System.out.println("Exception handled...");
}finally{
throw new Exception("This is exception");
}
}
charset. The charset that it uses may be specified by name or may be given explicitly, or the platform's default charset may be accepted. It has two overloaded read() method . Each invocation of one of an InputStreamReader's read() methods may cause one or more bytes to be read from the underlying byte-input stream. To enable the efficient conversion of bytes to characters, more bytes may be read ahead from the underlying stream than are necessary to satisfy the current read operation.Q1. What is OSB and why do we need OSB?
Ans – In simple terms, it is a middleware tool provided by Oracle. It stands for Oracle Service Bus. It is used to deliver low-cost, standards-based integration for mission-critical SOA environments where performance and scalability are important. It simply helps to transform a complex architecture into a simple one by connecting different applications and services.
Q2. What is Proxy Service?
Ans - A proxy service is a service which you can expose to the outside world. Instead of publishing the actual service to the real world, we can publish the proxy service with additional/optimized business logic.
A proxy service can call any other proxy service (PS), local proxy service (LPS), and business service (BS). It is often called over the HTTP protocol.
Q3. What is Business Service?
Ans – A business service represents the configuration required to connect to an external or backend service. It can use a WSDL or other service definitions, depending on the type of service.
A business service is normally not called directly from the outside world. It is generally called by a proxy service. It directly communicates with the backend/business application.
Q4. What is Local Proxy Service?
Ans – A local proxy service is treated as an internal service. It is not exposed to the outside world. It is normally used for internal processing, validation, or common business logic, and it is used internally between proxy services, local proxy services, and business services.
It is called over the "local" protocol. They do not have an endpoint which a consumer sitting outside the OSB can invoke.
In order to invoke an internal proxy service, the consumer will have to invoke an external proxy service, which in turn will route it to the internal service.
Q5. What is VETO pattern?
Ans – VETO stands for Validation, Enrich, Transform and Operate. A commonly used approach in ESB/OSB is the VETO pattern.
The "Validate" step is usually the first part of an ESB process. It checks whether the incoming message meets the required conditions. Validation can be performed at different layers depending on the integration design.
The "Enrich" step involves adding additional data to a message to make it more meaningful and useful to a target service or application.
The "Transform" step converts the message to a target format.
The "Operate" step is the invocation of the target service or an interaction with the target application.
You can share your interview experience with the questions and answers asked in interviews for publishing on this blog.
'this' (or the corresponding Class instance for a synchronized class method).SessionFactory factory= new Configuration().configure().buildSessionFactory();
Basic Formula: n * (n + 1) / 2.