I am parsing a response from server, and in case it contains the fields "chunk\_number"(`J_ID_CHUNK_NUMBER`) and "total\_chunk\_number"(`J_ID_CHUNK_TOTAL`), I want to check whether I should request another chunk or not. Not a complicated task. Yet I doubt what would be a better way to implement?

Option 1 - using try catch:

```
private int getNextChunkNumber(JSONObject jUpdate) {
    try {
        int current;
        int total;
        current = jUpdate.getInt(J_ID_CHUNK_NUMBER);
        total = jUpdate.getInt(J_ID_CHUNK_TOTAL);
        if (current < total) {
            return current + 1;
        }
    }
    catch(JSONException e) {
        // This is an empty exception because it merges with the default result (-1)
    }
    return -1;
}

```

Option 2 - using the `has` method:

```
private int getNextChunkNumber(JSONObject jUpdate) {
    int current;
    if (jUpdate.has(J_ID_CHUNK_NUMBER) &&
        jUpdate.has(J_ID_CHUNK_TOTAL)) {
        current = jUpdate.getInt(J_ID_CHUNK_NUMBER);
        if (current < jUpdate.getInt(J_ID_CHUNK_TOTAL)) {
            return current + 1;
        } 
    }
    return -1;
}

```