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Java 获取名称减去完整文件名中的路径。

欢马劈雪

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获取名称减去完整文件名的路径。

实例源码：

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/**

* Licensed to Jasig under one or more contributor license

* agreements. See the NOTICE file distributed with this work

* for additional information regarding copyright ownership.

* Jasig 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.

//package com.nowjava;//来 自 nowjava

public class Main {

public static void main(String[] argv) throws Exception {

String filename = "nowjava.com";

System.out.println(getName(filename));

}

/**

* The Unix separator character.

private static final char UNIX_SEPARATOR = '/';

/**

* The Windows separator character.

private static final char WINDOWS_SEPARATOR = '\\';

/**

* Gets the name minus the path from a full filename.

* <p>

* This method will handle a file in either Unix or Windows format.

* The text after the last forward or backslash is returned.

* <pre>

* a/b/c.txt --> c.txt

* a.txt     --> a.txt

* a/b/c     --> c

* a/b/c/    --> ""

* </pre>

* <p>

* The output will be the same irrespective of the machine that the code is running on.

* @param filename  the filename to query, null returns null

* @return the name of the file without the path, or an empty string if none exists

*//*时   代     Java  公  众  号 - nowjava.com*/

static String getName(String filename) {

if (filename == null) {

return null;

}

int index = indexOfLastSeparator(filename);

return filename.substring(index + 1);

}

/**

* Returns the index of the last directory separator character.

* <p>

* This method will handle a file in either Unix or Windows format.

* The position of the last forward or backslash is returned.

* <p>

* The output will be the same irrespective of the machine that the code is running on.

* 
/**代码未完, 请加载全部代码(NowJava.com).**/

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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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