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);
        }
     }
}