Date: 2017apr4 OS: Android Language: Java Q. org.apache.http.util.ByteArrayBuffer was removed in SDK23, what can I use instead? A. Use ByteArrayOutputStream

// Create old = new ByteArrayBuffer() => newer = new ByteArrayOutputStream()

// How many bytes? old.length() => newer.count()

// Delete all old.setLength(0) => newer.reset()

// Get all bytes old.buffer() => newer.toByteArray()

// Add some bytes old.append(buf, 0, len) => newer.write(buf, 0, len)