public FastIntBuffer(int e) { if (e < 0) { throw new IllegalArgumentException(); } capacity = size = 0; pageSize = 1<<e; exp = e; r = pageSize -1;
public FastIntBuffer() { size = 0; capacity = 0; pageSize = 1024; exp = 10; r = 1023;
    public FastIntBuffer(int e) {        if (e < 0) {            throw new IllegalArgumentException();        }        capacity = size = 0;        pageSize = 1<<e;        exp = e;        r = pageSize -1;        bufferArrayList = new ArrayList();    }