Java File.listFiles(FileFilter filter)方法

Java Java File.listFiles(FileFilter filter)方法具有以下語法。

public File [] listFiles(FileFilter filter)

範例

在下面的程式碼顯示如何使用File.listFiles(FileFilter filter)方法。

import java.io.File;
import java.io.FileFilter;

public class Main {
    public static void main(String[] args) {

        File f = new File("c:/python3");

        FileFilter filter = new FileFilter() {
            @Override
            public boolean accept(File pathname) {
                return pathname.isFile();
            }
        };// At: W W W .Yi I b  A I.c  o m 

        // returns pathnames for files and directory
        File[] paths = f.listFiles(filter);

        for (File path : paths) {
            System.out.println(path);
        }
    }
}

上面的程式碼生成以下結果。

c:\python3\LICENSE.txt
c:\python3\NEWS.txt
c:\python3\python.exe
c:\python3\python3.dll
c:\python3\python35.dll
c:\python3\pythonw.exe
c:\python3\README.txt
c:\python3\vcruntime140.dll