what is the difference between static class and singleton class? can we create static class?
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Answer Posted / 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();
}
}
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