what is the difference between static class and singleton class? can we create s

what is the difference between static class and singleton class? can we create static class?

Question Posted / rajshri.20

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what is the difference between static class and singleton class? can we create static class?..

Static class always a inner class. and static class can create multiple objects.all object have different reference value.
But on the other hand SingleTon class can have only single object because every object reference variable have same reference value.

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what is the difference between static class and singleton class? can we create static class?..

Answer / pratima thakur

1.We can create static class object like the below example.
class OuterClass
{
void outerMethod()
{
System.out.println("Inside in outerclass");
}

static class InnerClass
{
void innerMethod()
{
System.out.println("Inside in innerclass");
}

}
public static void main(String args[])
{
InnerClass iclass=new InnerClass();
InnerClass iclass1=new InnerClass();
iclass.innerMethod();
}
}

2.Single tone class implementaion
public class MySingleTon {

private static MySingleTon myObj;
/**
* Create private constructor
*/
MySingleTon(){

}
/**
* Create a static method to get instance.
*/
public static MySingleTon getInstance(){
if(myObj == null){
myObj = new MySingleTon();
}
return myObj;
}

public void getSomeThing(){
// do something here
System.out.println("I am here....");
}

public static void main(String a[]){
MySingleTon st = MySingleTon.getInstance();
System.out.println(st);

MySingleTon st1 = MySingleTon.getInstance();
System.out.println(st1);
st.getSomeThing();
}
}

Is This Answer Correct ?

1 Yes

0 No

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