// CSE 143, Winter 2010, Marty Stepp
// A TA object represents one teaching assistant.
// We made this class Comparable so that it can be stored in a priority queue.

public class TA implements Comparable<TA> {
    private String name;
    private int experience;

    // Constructs a new TA with given name and number of quarters' experience.
    // Throws IllegalArgumentException if name is null or experience is negative.
    public TA(String name, int experience) {
        if (name == null || experience < 0) {
            throw new IllegalArgumentException();
        }
        
        this.name = name;
        this.experience = experience;
    }
    
    // Compares this TA to the given other TA, returning -1 if I am "less"
    // than other, 0 if we are equal, 1 if I am "greater".  Compares by TA
    // experience and then by name.
    public int compareTo(TA other) {
        int comp = experience - other.getExperience();
        if (comp != 0) {
            return comp;
        } else {
            return name.compareTo(other.getName());
        }
    }

    // Returns the TA's name.
    public String getName() {
        return name;
    }
    
    // Returns the TA's quarters of experience.
    public int getExperience() {
        return experience;
    }

    // Returns string with name and number of quarters, such as "Kim (5q)".
    public String toString() {
        return name + " (" + experience + "q)";
    }
}