java文件和目錄

package hello.IO;

import java.io.File;
import java.io.IOException;

public class IO {
    public static void main(String[] args) {

    }

    //遍歷目錄


    //文件測試


    //重命名
    static void test6() {

    }

    //獲得文件信息
    static void test5() {
        File f = new File("");
        boolean b = f.delete();
        String name = f.getName();
        String ap = f.getAbsolutePath();
//        f.renameTo(f);
        b = f.canRead();
        File[] files = f.listFiles();
        assert files != null;
        for (File f1: files) {
            System.out.print(f1.getName());
        }
    }

    //刪除文件
    static void test4() {
        File f = new File("");
        boolean b = f.delete();
        String name = f.getName();
        String ap = f.getAbsolutePath();
    }

    //創建目錄
    static void  test3() {
        File f = new File("c:\\a\\b\\c");
        boolean b = f.mkdirs();
    }

    //創建文件
    static void test2() throws IOException {
        File f = new File("c:\\a.txt");
        boolean b = f.createNewFile();
    }

    static void test1() {
        String path = "C:\\java\\hello";
        File f = new File(path);

    }
}