random numbers

[max]

Here is my code. This should print out a random number, but it instead gives
me a loverly exception:
"exception in thread "main" java.lang.NoClassDefFoundError: Merge/Java"
Please help!!



import java.io.*;
import java.util.Random;

class Merge {

public static void main(String[] arg) {
Random r = new Random();
for (int i=0; i<10; i++) {
System.out.println(50+r.nextInt()%50);
}
System.out.println("Done.");
}

}