06-IO stream (flujo de caracteres-FileReader-método de lectura uno

package cn.filereader;

import java.io.FileNotFoundException;
import java.io.FileReader;

public class FileReaderTest {
	public static void main(String[] args) {
//		创建对象
		try {
			FileReader fr = new FileReader("d.txt");
			
			int b;
			while ((b=fr.read())!=-1) {
				System.out.println((char)b);
			}
			
			
//			int b =fr.read();
//			System.out.println(b);
//			
//			int b1 = fr.read();
//			System.out.println(b1);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
}