Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (c) 2016 Qiscus.
 *
 * 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 getTopicFromFileName(String fileName) {
        int startTopicIndex = fileName.indexOf("topic_");
        int lastTopicIndex = fileName.lastIndexOf("_topic");
        if (startTopicIndex >= 0 && lastTopicIndex >= 0) {
            try {
                return Integer.parseInt(fileName.substring(startTopicIndex + 6, lastTopicIndex));
            } catch (Exception e) {
                return -2;
            }
        }
        return -1;
    }
}