testdirop.java

本书是一本为Java学习者在基础内容学习结束后进行课程设计时提供参考的指导书

package apibook.c3.s5.File;

import java.io.File;

//测试File的目录操作，创建和删除功能
public class TestDirOp {
  public TestDirOp() {
  }
  public static void main(String[] args) {
    String filepath = "TestDirOp";
    File dir = new File(filepath);
    if (dir.exists()) {//如果存在该目录，则删除
            System.out.println((dir.delete() ? "Deleted " :
                                "Could not delete ") + dir.getPath());
    }//不存在则建立该目录
    if (dir.mkdirs()) {//建立该目录
        System.out.println("Created directory " + dir.getAbsolutePath());
        File subdir = new File(dir, "newSub");//在该目录下建立新的目录

        if (subdir.mkdir()) {
            System.out.println("Created subdirectory " +
                               subdir.getAbsolutePath());//建立
            System.out.println((subdir.delete() ? "Deleted " :
                                "Could not delete ") + subdir.getPath());//删除
        }
        else//建立子目录不成功
            System.out.println("Could not create subdirectory " +
                               subdir.getAbsolutePath());
        System.out.println((dir.delete() ? "Deleted " :
                            "Could not delete ") + dir.getPath());//删除该目录
    } else {//不能建立该目录
        System.out.println("Could not create directory " +
                           dir.getAbsolutePath());
    }
  }

}