Java to sort list of custom object on the basis of string

Question

class Person 
 {
 private String name;
 private String profession;
}

profession has values:

• engineer
• Doctor<

Answer 1

Add enum to your variables:

class Person {
   private String name;
   private String profession;
   private enum enumProffesion
    {
        Doctor, Teacher, student;
    }
}

After that could add function to the Person class which would give you value of the profession:

public int professionValue()
{
    enumProffesion enumValue= enumProffesion.valueOf(proffesion);
    switch (enumValue) {
    case Doctor: return 1; break;
    case Teacher: return 2; break;
    case student: return 3; break;
    default: return null;
    }
}

After that you just implement logic that will sort all Persons. For that you can help your self with this answer: sorting integers in order lowest to highest java