Java数据流 文件

作者：@kuaiquxie
作者的github：https://github.com/bitebita
本文为作者原创，如需转载，请注明出处：https://www.cnblogs.com/dzwj/p/16039671.html

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文件操作

import java.io.File;

public class UseFile {
    public static void main(String args[]){
        File f  = new File("file1.txt");
        System.out.println("the file is exists?   "+ f.exists());
        System.out.println("the file is write?   " + f.canWrite());
        System.out.println("the file is read ?   "+ f.canRead());
        System.out.println("the file is a file " +f.isFile());
        System.out.println("the file's path is ?    "+ f.getPath());
        System.out.println("the file's absolute path is "+ f.getAbsolutePath());
        System.out.println("the file's parent path is ?" + f.getParent());

        File newfile = new File("newfile.txt");

        f.renameTo(newfile);
        System.out.println(newfile.getName());
        System.out.println("if file is exists?" + f.exists());
        f.delete();
        newfile.delete();
        System.out.println("if file is exists?" + f.exists());

    }

}

这是对文件的一些基本操作