Java Comparable Interface compareTo method
comparable, compareto, interface, java, overloading
Solution
It's spelled `instanceof`.
Also, as Tom Hawtin mentioned in a comment, if you're using Java 1.5 or later you can write `compareTo(Employee emp)` to avoid using `instanceof` at all. There's a thorough section on writing Comparable types in the Object Ordering Java tutorial.
Problem
I don't see anything that I am doing wrong, but NetBeans gives me the following error: ``` incomparable types required: boolean found: java.lang.Object public int compareTo(Object obj) { if( obj instaceof Employee){ Employee employee = (Employee) obj; if(this.weekly_earnings > employee.weekly_earnings) return 1; else if(this.weekly_earnings == employee.weekly_earnings) return 0; else return -1; } else{ System.out.println("Error"); } } ```