package com.jiang.TextFile;
import java.io.*;
import java.io.IOException;public class TextFileIp {
public static void main(String[] agrs) throws IOException {
File file=new File("D:/a.txt");
System.out.println(file.isAbsolute());
FileInputStream filein=new FileInputStream(file); }}运行后
true
Exception in thread "main" java.io.FileNotFoundException: D:\a.txt (系统找不到指定的文件。)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at com.jiang.TextFile.TextFileIp.main(TextFileIp.java:13)
import java.io.*;
import java.io.IOException;public class TextFileIp {
public static void main(String[] agrs) throws IOException {
File file=new File("D:/a.txt");
System.out.println(file.isAbsolute());
FileInputStream filein=new FileInputStream(file); }}运行后
true
Exception in thread "main" java.io.FileNotFoundException: D:\a.txt (系统找不到指定的文件。)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at com.jiang.TextFile.TextFileIp.main(TextFileIp.java:13)
2 D:/a.txt 换成D:\\a.txt试一下
true
成功生成(总时间:0 秒)