Java基础 字节输入流的循环读取

FileInputStream fis = new FileInputStream("E:\\Java基础资料\\a.txt");

/*int b;
while((b = fis.read()) != -1) {
    System.out.print((char)b);
}*/

while (true) {
    int b = fis.read();
    if(b == -1)
        break;
    System.out.print((char)b);
}
fis.close();