35 lines
908 B
Java
35 lines
908 B
Java
//: io/DirList2.java
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// Uses anonymous inner classes.
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// {Args: "D.*\.java"}
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import java.util.regex.*;
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import java.io.*;
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import java.util.*;
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public class DirList2 {
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public static FilenameFilter filter(final String regex) {
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// Creation of anonymous inner class:
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return new FilenameFilter() {
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private Pattern pattern = Pattern.compile(regex);
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public boolean accept(File dir, String name) {
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return pattern.matcher(name).matches();
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}
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}; // End of anonymous inner class
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}
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public static void main(String[] args) {
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File path = new File(".");
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String[] list;
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if(args.length == 0)
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list = path.list();
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else
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list = path.list(filter(args[0]));
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Arrays.sort(list, String.CASE_INSENSITIVE_ORDER);
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for(String dirItem : list)
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System.out.println(dirItem);
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}
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} /* Output:
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DirectoryDemo.java
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DirList.java
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DirList2.java
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DirList3.java
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*///:~
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