java代码流类

总结：

package com.aini;

import java.io.*;

public class tre {

	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());
		}
	}
}
//
Please input:
tre
tre
erw
erw
32
32
23
23
fsd
fsd