What is the singleton class in java?
- 3 Answers
- 7352 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / leelanarasimhareddy
A singleton is a class for which only one instance can exist
within a program. In other words, only one, single object of
that particular class can be created in a program.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / naman patidar
A singleton class can never have more then one instance.
Example :
class SingletonClass {
private static SingletonClass singleObject;
public static SingletonClass getInstance() {
if (singleObject == null) {
singleObject = new SingletonClass();
}
return singleObject;
}
}
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / paletipatisrinu
singleton class:A java class create only one object per jvm
is called singleton java class.Most of jdbc driver class
implemented as a singleton java class
Ex:
class SingletonClass
{
private static SingletonClass singleObject;
public static SingletonClass getInstance()
{
if (singleObject == null)
{
singleObject = new SingletonClass();
}
return singleObject;
}
}
Singletone java class example is
org.apache.struts.action.ActionServlet
| Is This Answer Correct ? | 2 Yes | 1 No |
What is the java virtual machine (jvm)?
Sytem.out.println(" "); this code what mean
What is lazy loading in jpa?
What is the difference between collection and stream?
What is the difference between deep copy and shallow copy in java
How do javabeans work?
Iam working as a Project Lead in a s/w comp.The follwing question was asked in HCL interview. What about the schedule slippage? If the developer has taken more time than the specified time. How do you adjust the time? From where do you allocate that extra time for the developer?
What is meant by annotation in java?
What is optional in java 8? What is the use of optional?advantages of java 8 optional?
What is difference between loosely coupled and tightly coupled in java?
What do you understand by a variable?
What is adoptopenjdk?
Java J2EE 
