View Compilation Error

0_0_6387442_32585\Main.java:18: cannot find symbol
symbol  : class Queue
location: class Main
        Queue<Integer> que = new LinkedList<Integer>();        
        ^
0_0_6387442_32585\Main.java:18: cannot find symbol
symbol  : class LinkedList
location: class Main
        Queue<Integer> que = new LinkedList<Integer>();        
                                 ^
2 errors