View Compilation Error

0_0_6066823_31665\Main.java:9: cannot find symbol
symbol  : class Scanner
location: class Main
		Scanner cin = new Scanner(System.in);
		^
0_0_6066823_31665\Main.java:9: cannot find symbol
symbol  : class Scanner
location: class Main
		Scanner cin = new Scanner(System.in);
		                  ^
0_0_6066823_31665\Main.java:30: cannot find symbol
symbol  : variable Arrays
location: class Main
			Arrays.sort(nums,0,counts+1);
			^
3 errors