How to add new elements to an array?

Question

I have the following code:

String[] where;
where.append(ContactsContract.Contacts.HAS_PHONE_NUMBER + \"=1\");
where.append(ContactsContract.Contacts.IN_VISIB         


        

Answer 1

It's also possible to pre-allocate large enough memory size. Here is a simple stack implementation: the program is supposed to output 3 and 5.

class Stk {
    static public final int STKSIZ = 256;
    public int[] info = new int[STKSIZ];
    public int sp = 0; // stack pointer
    public void push(int value) {
        info[sp++] = value;
    }
}
class App {
    public static void main(String[] args) {
        Stk stk = new Stk();
        stk.push(3);
        stk.push(5);
        System.out.println(stk.info[0]);
        System.out.println(stk.info[1]);
    }
}