如何打开Java中以特定前缀开头的所有文件? [英] How to open all files that starts with specific prefix in java?

问题描述

有什么方法可以打开Java中以特定名称开头的目录中的某些文本文件吗?

Is there any way to open some of the text files in the directory that starts with a specific name in Java?

例如，在我的目录中，我有以下文件:

For example in my directory I have the following files:

Ab-01.txt
Ab-02.txt
Ab-03.txt
Ab-04.txt
SomethingElse.txt
NotRelated.txt

所以现在在我的Java代码中，我只想打开那些以" Ab-"

So now in my Java code I only want to open those files that starts with "Ab-"

推荐答案

是.使用 File.listFiles(FilenameFilter) :

例如:

File dir = new File("/path/to/directory");
File[] foundFiles = dir.listFiles(new FilenameFilter() {
    public boolean accept(File dir, String name) {
        return name.startsWith("Ab-");
    }
});

for (File file : foundFiles) {
    // Process file
}    

当然，请将 accept()方法中的条件更改为所需的条件.因此，也许 name.startsWith("Ab-")&&name.endsWith(.txt").

Of course, change the condition in the accept() method to whatever you need. So maybe name.startsWith("Ab-") && name.endsWith(".txt").

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