Sorting array of objects by field

Question

I have objects

Person{
    String name;  
    int age;
    float gradeAverage;
    }

Is there an easy way to sort

Person[]         


        

Answer 1

Yes just implement the Comparable interface.

Here's an example :

class Person implements Comparable {
    public int age;
    public String name;

    public int compareTo(Person other){
        return this.age == other.age ? 0 : this.age > other.age ? 1 : -1;
    }
}