java操作txt文档

import java.io.*;

class FileOutputStreamDemo
{
public static void main(String args[]) {
//声明一个FileOutputStream变量
FileOutputStream out; 
//声明一个Print Stream流
PrintStream p; 

try {
//建立一个FileOutputStream对象
out = new FileOutputStream("myfile.txt");
// 将PrintStream连接到OutputStream
p = new PrintStream( out );
// 通过PrintStream向OutputStream 输出一条句子，OutputStream将会将它写入到文件中
p.println ("数据库查出的内容");
p.close();
} catch (Exception e) {
System.err.println ("Error writing to file");
}
}
} 

 

//----------------第二种方法----------------------------------------------------------

 

FileOutputStream fos=new FileOutputStream("c;\\11.txt");  

BufferedWriter bw=new BufferedWriter(fos);  

bw.write("你好");  

bw.newline();  

bw.write("java");  

w.newline();  

 

//-----------------读取txt----------------------------------------------------

File file=new File("e:\\text.txt");
Vector vector = new Vector();
try
{
BufferedReader input=new BufferedReader(new FileReader(file));
String text;
while((text=input.readLine())!=null)

vector.add(text);

} catch(Exception ex) {}