View Compilation Error

0_0_27824666_28025.cpp:6:9: error: stray '@' in program
         @SuppressWarnings("resource")
         ^
0_0_27824666_28025.cpp:1:1: error: 'import' does not name a type
 import java.math.BigDecimal;
 ^
0_0_27824666_28025.cpp:2:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_27824666_28025.cpp:4:1: error: expected unqualified-id before 'public'
 public class duanyao {
 ^