Reader读取文件的两种方式

package com.zkk.reader;

import java.io.FileReader;
import java.io.IOException;

public class Read_One_Demo {
private static FileReader fr=null;
public static void main(String[] args){
try{
fr=new FileReader("text.demo");
int num=0;
while((num=fr.read())!=-1){
System.out.println((char)num);
}
}catch(IOException e){
e.printStackTrace();
}finally{
if(fr!=null){
try {
fr.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}

}

}

package com.zkk.reader;

import java.io.FileReader;
import java.io.IOException;

public class Read_Two_Demo {
private static FileReader fr=null;
public static void main(String[] args) {
try{
fr=new FileReader("text.demo");
int num=0;
char[]buf=new char[1024];
while((num=fr.read(buf))!=-1){
System.out.println(new String(buf,0,num));
}
}catch(IOException e){
e.printStackTrace();
}finally{

}
}

}