import java.util.regex.*;
import java.io.*;
import java.util.*;
public class DirList{
public static void main(String[] args){
File path=new File(".");
String[] list1;
if(args.length==0)
list1=path.list();
else
list1=path.list(new DirFilter(args[0]));
Arrays.sort(list1,String.CASE_INSENSITIVE_ORDER);
for(String dirItem:list1)
System.out.println(dirItem);
}
}class DirFilter implements FilenameFilter{
private Pattern pattern;
public DirFilter(String regex){
pattern=Pattern.compile(regex);
}
public boolean accept(File dir,String name){
return pattern.matcher(name).matches();
}
}
在doc下输入java DirList java不能输出java后缀的文件
import java.io.*;
import java.util.*;
public class DirList{
public static void main(String[] args){
File path=new File(".");
String[] list1;
if(args.length==0)
list1=path.list();
else
list1=path.list(new DirFilter(args[0]));
Arrays.sort(list1,String.CASE_INSENSITIVE_ORDER);
for(String dirItem:list1)
System.out.println(dirItem);
}
}class DirFilter implements FilenameFilter{
private Pattern pattern;
public DirFilter(String regex){
pattern=Pattern.compile(regex);
}
public boolean accept(File dir,String name){
return pattern.matcher(name).matches();
}
}
在doc下输入java DirList java不能输出java后缀的文件
import java.io.*;
import java.util.*;public class DirList {
public static void main(String[] args) {
System.out.print("请输入您要过滤的后缀:");
String suffix = new Scanner(System.in).nextLine();
File path = new File("./src/test");
String[] list1;
if (suffix == null)
list1 = path.list();
else
list1 = path.list(new DirFilter(suffix)); Arrays.sort(list1, String.CASE_INSENSITIVE_ORDER);
for (String dirItem : list1)
System.out.println(dirItem); }}class DirFilter implements FilenameFilter {
private Pattern pattern; public DirFilter(String regex) {
pattern = Pattern.compile(regex);
} public boolean accept(File dir, String name) {
return pattern.matcher(name).find();
}}
private Pattern pattern;
public DirFilter(String regex){
pattern=Pattern.compile(".+\\."+regex);
}
public boolean accept(File dir,String name){
return pattern.matcher(name).matches();
}
}