1.以printwriter來實作寫入
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiIml2ZukHcvN2Xu92Yp9CXzV2Zh1WavwVbvNmLllXZ0lmL3d3dvw1LcpDc0RHaiojIsJye.gif)
import java.io.*;
public class test {
/**
* @param args
*/
public static void main(string[] args) {
string path="e://a.txt";
try {
filewriter fw=new filewriter(path,true);
printwriter pw=new printwriter(fw);
pw.println("世界");
pw.close();
//bw.close();
fw.close();
} catch (ioexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
}
2.以bufferedwriter來實作寫入
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiIml2ZukHcvN2Xu92Yp9CXzV2Zh1WavwVbvNmLllXZ0lmL3d3dvw1LcpDc0RHaiojIsJye.gif)
import java.io.*;
public class test {
/** * @param args */
public static void main(string[] args) {
string path="e://a.txt";
try {
filewriter fw=new filewriter(path,true);
bufferedwriter bw=new bufferedwriter(fw);
bw.newline();
bw.write("hello");
bw.newline();
bw.write("世界");
bw.close();
fw.close();
} catch (ioexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
}
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiIml2ZukHcvN2Xu92Yp9CXzV2Zh1WavwVbvNmLllXZ0lmL3d3dvw1LcpDc0RHaiojIsJye.gif)
}
讀檔案用bufferedreader br = new bufferedreader( new filereader(new file("e://a.txt")));
br.readline();//一行一行的讀
本文出自seven的測試人生公衆号最新内容請見作者的github頁:http://qaseven.github.io/