View Compilation Error

0_0_28721066_12058.cpp:15:2: error: stray '@' in program
  @SuppressWarnings("unused")
  ^
0_0_28721066_12058.cpp:1:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_28721066_12058.cpp:3:1: error: expected unqualified-id before 'public'
 public class Main {
 ^