Java tutorial
//package com.java2s; /* * Copyright 2001-2006 The Apache Software Foundation. * * Licensed 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 zeroConvert(Object src) { if (src == null || src.equals("null")) { return 0; } else { return Integer.parseInt(((String) src).trim()); } } public static int zeroConvert(String src) { if (src == null || src.equals("null") || "".equals(src) || " ".equals(src)) { return 0; } else { return Integer.parseInt(src.trim()); } } }