Have an error in executing java program.

Question

There is no java res in the side pannel(package explorer)
of eclipse helios that i am using ...and every time even if i write right code it shows error related to something load main class . Please help me to fix this problem. Code is

package first;
public classes second{
public void main(String[ ] args){
System.out.println("Hello");
}
}

Answer 1

it is not classes its class only

Answer 2

maybe show your code here?