Want to know about Singleton Class

[sharma sachin]

hello guys,
can any one explain me what is SingleTon class and what is the use of it with detailed example
my another question is when we should use Thread Class and when we should use Runnable Interface(eventhough Thread and Runnable both are used to create our own Thread)
then which one is the best option that we should go for.

[Seetharaman Venkatasamy]

*It is better to google first for the detail*. if you have any specific doubt about the detail, then please post the doubt.

[Ikpefua Jacob-Obinyan]

IMHO I agree with Seetharaman...You should make some effort first, make some research either in google or in this forum by using the search dialog box, place the codes here and tell us what you dont understand. Asking for help 'from-the-scratch' is NOT the best way to learn.

With reference to threads you should at LEAST tell us which one you think is better and why, then we will analyse together.

Regards

Ikpefua

[Mohamed Sanaulla]

Also please UseOneThreadPerQuestion
For both of these questions, as pointed out by others, can be found in lots of previous posts.

[Javin Paul]

I have shared some of my experience around singleton and Runnable and Thread class in my blog post, check it out you may get some idea around them.

10 questions on Singleton pattern in Java

how to implement thread using Thread class and Runnable interface

[sharma sachin]

import java.lang.reflect.*;
public class MyReflection
{
   public static void main(String[] ar) throws ClassNotFoundException
      {
          Class my=MyReflection.class;  //1
          System.out.println(my);
 
          Class c=Class.forName("MyReflection");  //2
          System.out.println(c.getName());
      }
}

hello guys
here is the above code now the output is not cleared to me.
the first println says:class MyReflection and second println statement says MyReflection
if we know the class name at compile time then we can get the java.lang.Class object written in 1 statement
if we don't know the class name at compile time but have a class name as a string at run time we can get Class object written in 2 statement
the above two statements are not cleared to me.......
can anyone take me out from my query