What is the singleton class in java?

Question Posted / ragini3

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What is the singleton class in java?..

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 ?

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What is the singleton class in java?..

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

What is the singleton class in java?..

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