View Compilation Error

1_868_1264_53.cpp:1:1: error: 'package' does not name a type
 package hello;
 ^
1_868_1264_53.cpp:3:1: error: 'import' does not name a type
 import java.math.BigDecimal;
 ^
1_868_1264_53.cpp:4:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
1_868_1264_53.cpp:5:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
1_868_1264_53.cpp:7:1: error: expected unqualified-id before 'public'
 public class Main {
 ^