关于java I/O流学习笔记

import java.io.*;
import java.io.IOException;
import java.io.InputStreamReader;
public class StandardInputOutput{
public static void main(String[] args){

}
}
/*
public static void main(String[] args){
int b;
try
{
System.out.println("Please input:");
while ((b = System.in.read())!=-1)
{
System.out.print((char)b);
}
}
catch (IOException e)
{
System.out.println(e.toString());
}
}
*/
/*
public static void main(String[] args){
String s;
//创建缓冲区阅读器从键盘逐行读入数据
InputStreamReader ir = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(ir);
System.out.println("Unix系统：ctrl-d 或 ctrl-c 退出"+"\nWindows系统：ctrl-z退出");

try
{
//读入一行数据。并标准输出至显示器
s=in.readLine();
//readLine()方法运行时若发生I/O错误，将抛出IOException异常
while (s != null)
{
System.out.println("Read:"+s);
s=in.readLine();
}
//关闭缓冲阅读器
in.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
*/