Here you can find the source of objectToInt(Object o)
public static int objectToInt(Object o) throws Exception
//package com.java2s; /*/* w ww . j a v a 2 s . com*/ * ------------------------------------------------------------------- * Contact: a language and interactive shell for Riak * * Copyright (c) 2013 Dave Parfitt * * This file is provided to you under the Apache License, * Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain * a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ------------------------------------------------------------------- */ public class Main { public static int objectToInt(Object o) throws Exception { if (o instanceof String) { return Integer.parseInt((String) o); } else if (o instanceof Integer) { return ((Integer) o).intValue(); } else { throw new Exception("Invalid option value " + o); } } }