java创建一个类实现读取一个文件中的每一行显示出来

import java.io.*;import java.util.*;class MyBufferReaderDemo{private FileReader fb;MyBufferReaderDemo(FileReader fb){this.fb=fb;}public String BufferReader() throws IOException{StringBuilder s1=new StringBuilder();int ch=0;while((ch=fb.read())!=-1){if(ch=='/r')continue;if(ch=='/n')return s1.toString();elses1.append((char)ch);}if(s1.length()!=0)return s1.toString();return null;}public void myClose() throws IOException{fb.close();}public static void main(String[] args) throws IOException  {// TODO Auto-generated method stubFileReader f1=new FileReader("d://MyBufferReaderDemo.java");MyBufferReaderDemo myb=new MyBufferReaderDemo(f1);String line=null;while((line=myb.BufferReader())!=null){System.out.println(myb.BufferReader());}myb.myClose();}}