testfile

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package com.ldu.file;import java.io.File;import java.io.IOException;import java.util.Date;import org.junit.Test;/* * getName()获取文件名 * getPath()获取路径 * getAbsoluteFile()获取绝对文件名（带路径） * getAbsolutePath()绝对路径 * getParent() 获取上一层文件目录 * renameTo(File name)修改文件名 */public class TestFile {    @Test    public void test() throws IOException{        File file = new File("F:\\io\\hello.txt");        File file1=new File("F:\\io\\io1");        File file2 = new File("F:\\io\\hello1.txt");        File file3 = new File("F:\\hello1.txt");        File file4=new File("F:\\io");        System.out.println(file.delete());        System.out.println(file.createNewFile());        System.out.println(file1.mkdir());        String[] strs=file4.list();        for (int i = 0; i < strs.length; i++) {            System.out.println(strs[i]);        }        System.out.println("======================================");        System.out.println(file.getName());        System.out.println(file.getPath());        System.out.println(file.getAbsoluteFile());        System.out.println(file.getAbsolutePath());        System.out.println(file.getParent());        System.out.println("======================================");        System.out.println(file1.getName());        System.out.println(file1.getPath());        System.out.println(file1.getAbsoluteFile());        System.out.println(file1.getAbsolutePath());        System.out.println(file1.getParent());        System.out.println("======================================");        boolean b=file3.renameTo(file);        System.out.println(b);        System.out.println("======================================");        System.out.println(file.exists());        System.out.println(file.canWrite());        System.out.println(file.canRead());        System.out.println(file.isFile());        System.out.println(file.isDirectory());        System.out.println(new Date(file.lastModified()));        System.out.println(file.length());        System.out.println("======================================");    }}
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