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 getter and setter for profession in Person class and simply use below code

class Person {
   private String name;
   private String profession;
   public String getProfession() {  
        return profession;  
    }  
    public void setProfession(String profession) {  
        this.profession = profession;  
    }
}


List<Person> personList = new ArrayList<Person>(); 

Person p1 = new Person();
p1.setProfession("Engineer"); 
personList.add(p1);

Person p2 = new Person();
p2.setProfession("Doctor"); 
personList.add(p2);

Person p3 = new Person();
p3.setProfession("Teacher"); 
personList.add(p3);

Person p4 = new Person();
p4.setProfession("student"); 
personList.add(p4);


Collections.sort(personList, new Comparator() {  
@Override  
public int compare(Object obj1, Object obj2) {  
Person p1 = (Person)obj1;  
Person p2 = (Person)obj2;  
return p1.getProfession().compareToIgnoreCase(p2.getProfession());  
}  
});