java creates a class implementation that reads every line in a file and displays it

  • 2020-05-30 20:01:57
  • OfStack

Instance as follows


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();
else
s1.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 stub
FileReader 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();
}
}

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