View Compilation Error

0_0_35007917_22889.cpp:2:1: error: 'package' does not name a type
 package hdu;
 ^
0_0_35007917_22889.cpp:4:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_35007917_22889.cpp:5:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_35007917_22889.cpp:7:1: error: expected unqualified-id before 'public'
 public class Main 
 ^