error in execution

/**
* This MyFirstJavaProgramme class implements an application that simply
* prints “Hurray! This is my first Java programme!!” to standard output.
*/
class MyFirstJavaProgramme {

/* This is the main class*/

public static void main (String[] args) {

System.out.println("Hurray! This is my first Java programme!!");
// Displays String

}

}

sir i tried to execute this prog after compilation,but it seems to be exception in thread main classnotfoundexceptionerror

Hi

copy & past this program, save it with MyFirstJavaProgramme.java and than try to run.

class MyFirstJavaProgramme
{
public static void main (String[] args)
{
System.out.println("Hurray! This is my first Java programme!!");
}
}


for compile & run
>javac MyFirstJavaProgramme.java
>java MyFirstJavaProgramme


Java Teacher