📅  最后修改于: 2020-11-18 08:17:06             🧑  作者: Mango
根据后缀过滤文件。这用于检索特定类型的所有文件。
以下是org.apache.commons.io.filefilter.SuffixFileFilter类的声明-
public class SuffixFileFilter
extends AbstractFileFilter implements Serializable
这是我们需要解析的输入文件-
Welcome to TutorialsPoint. Simply Easy Learning.
让我们打印当前目录中的所有文件和目录,然后过滤扩展名为txt的文件。
IOTester.java
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.filefilter.SuffixFileFilter;
public class IOTester {
public static void main(String[] args) {
try {
usingSuffixFileFilter();
} catch(IOException e) {
System.out.println(e.getMessage());
}
}
public static void usingSuffixFileFilter() throws IOException {
//get the current directory
File currentDirectory = new File(".");
//get names of all files and directory in current directory
String[] files = currentDirectory.list();
System.out.println("All files and Folders.\n");
for( int i = 0; i < files.length; i++ ) {
System.out.println(files[i]);
}
System.out.println("\nFile with extenstion txt\n");
String[] filesNames = currentDirectory.list( new SuffixFileFilter("txt") );
for( int i = 0; i < filesNames.length; i++ ) {
System.out.println(filesNames[i]);
}
}
}
它将打印以下结果。
All files and Folders.
.classpath
.project
.settings
bin
input.txt
src
File with extenstion txt
input.txt