help me in kicking off the bug from the following code

[Akshay Kumar]

abstract class second {
int i;
abstract void setValue (int);
int getValue () {
return i;
}
abstract void printValue ();
}
public class first extends second {
static first f = new first();
public first() {
}
static public void main(String[] args) {
System.out.println("Hello");
f.setValue (10);
f.printValue();
}
void setValue (int iValue) {
i = iValue;
}
void printValue () {
System.out.println("Value of i ::: " + f.getValue ());
}
}

[David Peterson]

Repeat post. See: https://coderanch.com/t/373144/java/java/help-me-kicking-off-bug