Funkcja split tablice

public class GeneratorLogowania {

    public static void main(String[] args) {

        String[] studentNames = { "Kluska Jan", 
                                  "Dziwak Stanisław", 
                                  "Bartoś Grażyna",
                                  "Klamka Franciszek",
                                  "Wielguś Hanna" };
    }
}

for(int i=0; i<studentNames.length; i++) {
        	String[] n = studentNames[i].split(" ,");
          System.out.println(n);
        }

error: cannot find symbol
        	String[] n = studentNames.split(",");
        	                         ^
  symbol:   method split(String)
  location: variable studentNames of type String[]

          System.out.println(n);