java - How do I get my Setter to interact with my separate Class? -

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• what reason behind “non-static method cannot referenced static context”? [duplicate] 13 answers
• “non-static method cannot referenced static context” error [duplicate] 4 answers

public class thing { public static void main (string[] args)     {     //i set veriables , prompt user enter number of names     //prompt user first , last name , store names in array of classes      arrays.sort(listofname, new comparator<otherclass>()//sort names according last name     //code here (which have not issue)     (int = 0; i<numname; i++)         {         ans = joptionpane.showinputdialog(null,"how many students does: \n "+ listofname[i]+ " have");         int val = integer.parseint(ans);         otherclass.setnumstudents(val);// in separate class have setnumstudents         }     for(int = 0; i<numname; i++)         {         system.out.println(listofname[i]);         }     } 

earlier in program set array store according separate class otherclass , int numstudents set 0 initially, after collecting firstname , lastname alphabetize array , inquire how many students each person has. using setter setnumstudents try change numstudents stored in array. code error:

non-static method setnumstudents(int) cannot referenced static context         otherclass.setnumstudents(val);              ^               

thank on issue

i think want:

listofname[i].setnumstudents(val); 

or along line. java coding conventions have class names @ camel case starting upper case. otherclass class name? should otherclass avoid confusion.

i don't know if listofname[i] correct instance 'listoftutor[i]' need find instance of otherclass