java - error: cannot assign a value to final variable -

i working on assignment , i'm stuck on error: cannot assign value final variable count

here code far...

public class list {     private final int max = 25;     private final int count;      private person list[];      public list()     {         count = 0;          list = new person[max];     }      public void addsomeone(person p)     {         if (count < max){             count++; // error occurs              list[count-1] = p;         }     }      public string tostring()     {         string report = "";          (int x=0; x < count; x++)             report += list[x].tostring() + "\n";           return report;     } }   

i'm new java , not computer whiz please explain problem/solution in simplest terms possible. thank much.

count++; throw error. per oracle,

a final variable may assigned once. declaring variable final can serve useful documentation value not change , can avoid programming errors.

you can follow along article here. looking @ code, seems don't want count final. want able change value throughout program. fix remove final modifier.