一,转换流：

A,字节流通入字符流桥梁。InputStreamReader

      //获取键盘录入对象

InputStream in=System.in;

//將字节流转化为字符流，使用转化流InputStreamReader这个转换流、

InputStreamReader ipr=new InputStreamReader(in);

//为了提高效率，将字符串进行缓冲区技术高效操作

BufferedReader bufi=new BufferedReader(ipr);

String line=null;

while((line=bufi.readLine())!=null)

{

if("over".equals(line))

break;

System.out.println(line.toUpperCase());

}

bufi.close();

B,字符流通入字节流桥梁。OutputStreamWirter

OutputStream out=System.out;

OutputStreamWriter osw=new OutputStreamWriter (out);

//为了提高效率，将字符串进行缓冲区技术高效操作

BufferedWriter oswwww=

new BufferedWriter

(new OutputStreamWriter(System.out));

String line=null;

while((line=bufi.readLine())!=null)

{

oswwww.write(line.toUpperCase());

oswwww.flush();

}

  oswwww.close();

C,最常见的键盘写法：

BufferedReader bufi=new BufferedReader(new InputStreamReader(System.in ));

BufferedWriter oswwww=new BufferedWrite(new OutputStre

一,转换流：

A,字节流通入字符流桥梁。InputStreamReader

      //获取键盘录入对象

InputStream in=System.in;

//將字节流转化为字符流，使用转化流InputStreamReader这个转换流、

InputStreamReader ipr=new InputStreamReader(in);

//为了提高效率，将字符串进行缓冲区技术高效操作

BufferedReader bufi=new BufferedReader(ipr);

String line=null;

while((line=bufi.readLine())!=null)

{

if("over".equals(line))

break;

System.out.println(line.toUpperCase());

}

bufi.close();

B,字符流通入字节流桥梁。OutputStreamWirter

OutputStream out=System.out;

OutputStreamWriter osw=new OutputStreamWriter (out);

//为了提高效率，将字符串进行缓冲区技术高效操作

BufferedWriter oswwww=

new BufferedWriter

(new OutputStreamWriter(System.out));

String line=null;

while((line=bufi.readLine())!=null)

{

oswwww.write(line.toUpperCase());

oswwww.flush();

}

  oswwww.close();

C,最常见的键盘写法：

BufferedReader bufi=new BufferedReader(new InputStreamReader(System.in ));

BufferedWriter oswwww=new BufferedWrite(new OutputStre