dirlist.java

来自「java2参考大全上的例子的源码和自己的理解.」· Java 代码 · 共 54 行

package 用list;

/**
 Directory of java
 MyFile.txt is a file
 1.txt is a file
 2.txt is a file
 3.txt is a file
 新建文件夹 is a directory

 */

// Using directories.
import java.io.File;
import javax.swing.*;

class DirList {
  JTextField jTextField1 = new JTextField();
  public static void main(String args[]) {
    String dirname = "java";
    File f1 = new File(dirname);

    if (f1.isDirectory()) {
      System.out.println("Directory of " + dirname);
      String s[] = f1.list();

      for (int i = 0; i < s.length; i++) {
        File f = new File(dirname + "/" + s[i]);
        if (f.isDirectory()) {
          System.out.println(s[i] + " is a directory");
        }
        else {
          System.out.println(s[i] + " is a file");
        }
      }
    }
    else {
      System.out.println(dirname + " is not a directory");
    }
  }

  public DirList() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jTextField1.setText("jTextField1");
  }
}