java字符流之ByteArrayOutputStream,ByteArrayInputStream

public class ByteArrayOutputStreamTest {
    public static void main(String[] args) {
    	
    	ByteArrayOutputStream bot = new ByteArrayOutputStream(1);
	    try {
			bot.write(10);
			bot.write(11);
			bot.write(12);
			InputStream iot = new ByteArrayInputStream(bot.toByteArray());
			int a=iot.read();
			while(a!=-1){
				System.out.println(a);
				a=iot.read();
			}
			bot.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	    
	}
}

10
11
12