import java.util.Scanner;

public class test{
    public static void main(String[] args){
        String[] names;
        names = new String[5];
        for(int i=0; i<10; ++i){
            addToArray(names, i, "blah");
        }
        System.out.println(names.length);
        System.out.println("bye");
    }

    public static void addToArray(String[] names, int i, String name){
        if (i < names.length){
            names[i] = name;
        }
        else {
            String[] temp;
            temp = new String[names.length + 10];
            System.arraycopy(names, 0, temp, 0, names.length);
            addToArray(temp, i, name);
            names = temp;
        }
    }
}

names = temp;

public static String[] addToArray(String[] names, int i, String name){
    if (i < names.length){
        names[i] = name;
    }
    else {
        String[] temp;
        temp = new String[names.length + 10];
        System.arraycopy(names, 0, temp, 0, names.length);
        names = addToArray(temp, i, name);
    }
    return names;
}

for(int i=0; i<10; ++i){
    names = addToArray(names, i, "blah");
}

ArrayList<String> stringArrayList = new ArrayList<>();