Here you can find the source of getFirstNotEmpty(String str, String sperator)
public static String getFirstNotEmpty(String str, String sperator)
//package com.java2s; /**/* w w w.jav a 2 s .co m*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * 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. */ import java.util.Arrays; import java.util.List; public class Main { public static String getFirstNotEmpty(String str, String sperator) { List<String> parts = Arrays.asList(str.split("/")); for (String part : parts) { if (!isEmpty(part)) { return part; } } return str; } public static String getFirstNotEmpty(List<String> list) { if (isEmpty(list)) { return null; } for (String item : list) { if (!isEmpty(item)) { return item; } } return null; } public static boolean isEmpty(String str) { if (str != null) { int len = str.length(); for (int x = 0; x < len; ++x) { if (str.charAt(x) > ' ') { return false; } } } return true; } public static boolean isEmpty(List<String> list) { if (list == null || list.size() == 0) { return true; } if (list.size() == 1 && isEmpty(list.get(0))) { return true; } return false; } }