sorting - How do i sort data in text file with Java? vol#2 -

i'm trying sort data have in text file. each row of file contains fields:

name,surname,age,weight,height 

i tried split each line using peter dolberg's java code - doesn't work duplicate keys. can instead?

simple approach create class personalinfo instance variable name,surname,age,weight,height. write getter , setter methods.

then create array of personalinfo objects(by reading file ).

personalinfo employeeinfo[] = new personalinfo[3]; 

then define comparator on basis compare. example age -

 class agecomparator implements comparator{  public int compare(object ob1, object ob2){     int ob1age = ((personalinfo)ob1).getage();             int ob2age = ((personalinfo)ob2).getage();      if(ob1age > ob2age)         return 1;     else if(ob1age < ob2age)         return -1;     else         return 0;       } } 

then can use comparator sort data.

arrays.sort(employeeinfo, new agecomparator()); 

if wish sort data taking factors consideration can add logic comparator class.