java学习：字符流

• • 1.字符流写入数据：
  • 2.字符流读取数据：

OutputStreamWriter
OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream(“D:javacprojects字符流FOX.txt”));
创建一个使用默认字符编码的对象

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;

public class uylh {


    public static void main(String[] args) throws IOException {


        OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream("D:\javac\projects\字符流\FOX.txt"));



osw.write(97);
osw.flush();//刷新流

     osw.write('e');
    osw.flush();


    osw.close();//关闭资源


    }

}

InputStreamReader is=new InputStreamReader(new FileInputStream(“D:javacprojects字符流FOX.txt”));

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class wert {


    public static void main(String[] args) throws IOException {


        InputStreamReader is=new InputStreamReader(new FileInputStream("D:\javac\projects\字符流\FOX.txt"));



        int c;
        int len;



       // while((c=is.read())!=-1){

      //      System.out.println(c);


       char[] ch=new char[2014];
      while((len=is.read(ch))!=-1){

          System.out.println(new String(ch,0,len));

      }

        is.close();

        }




    }

结果：