创建文件,并填写内容的几种方式

import java.io.*;

public class Test{
public static void main(String[] args)
{
try {
BufferedWriter bw = new BufferedWriter(new FileWriter("data.txt"));
//文件将会创建在程序所在的文件夹中，
//("data.txt")也可以加上路径，如：("C:\\data.txt"),这样就会在C盘根目录创建一个data.txt文件
BufferedOutputStream out=new BufferedOutputStream(new FileOutputStream("data2.txt"));
DataOutputStream dout=new DataOutputStream(new BufferedOutputStream(new FileOutputStream("data3.txt")));
PrintStream pout=new PrintStream(new BufferedOutputStream(new FileOutputStream("data4.txt")));
RandomAccessFile rout=new RandomAccessFile("data5.txt","rw");//"rw"表示此文件可读可写
PrintWriter pw=new PrintWriter(new BufferedWriter(new FileWriter("data6.txt")));

//设置文本内容
StringBuffer sb=new StringBuffer("");
sb.append("How are you?"+"\r\n");
sb.append("Fine,thanks,and you?"+"\r\n");
sb.append("Fine,too.");

String a=sb.toString();
byte[] b=(a).getBytes();
//写入文件，还可以用其他方法如：write(String str)
bw.write(a,0,b.length);
out.write(b, 0, b.length);
dout.write(b, 0, b.length);
pout.write(b, 0, b.length);
rout.write(b, 0, b.length);
pw.print(a);
//关闭流
out.close();
bw.close();
dout.close();
pout.close();
rout.close();
pw.close();
} catch (IOException ex) {
System.out.println(ex);
}
}
}