View Compilation Error

0_0_28368566_24863\Main.java:6: 错误: 找不到符号
      Scanner in = new Scanner(new BufferdInputStream(System.in));
                                   ^
  符号:   类 BufferdInputStream
  位置: 类 Main
0_0_28368566_24863\Main.java:7: 错误: 不兼容的类型: String无法转换为boolean
      while(in.next())
                   ^
2 个错误