如何通过调用此方法初始化此数组？

由于某种原因，我只是想不出如何调用顶部的变量的底部两个方法。当我做initalizeString（String [] names）; 我总是得到.class的期望。不太确定我在调用该方法时在做什么错。

import java.util.Scanner;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class SoftDrinkInventory {

    static final int MAXSIZE = 100;      // maximum size of 100
    private String[] names;             // softdrink names
    private String[] ids;               // softdrink identifications
    private int[] startingInventory;    // starting inventory of the softdrinks
    private int[] finalInventory;       // final inventory of the softdrinks
    private int[] transactionCounts;    // number of transactions per softdrink
    private int trueSize;               // total number of softdrinks

    public SoftDrinkInventory() {

      // call initalizeString for names/ids
      // call initializeInt for inventory/transaction counts

    }

    private void initializeInt(int[] a) {

        a = new int[MAXSIZE];

        for(int i = 0; i <= MAXSIZE; i++) {
            a[i] = 0;
        }

    }

    private void initializeString(String[] s) {

        s = new String[MAXSIZE];

        for(int i = 0; i <= MAXSIZE; i++) {
            s[i] = "";
        }

    }

}