View Compilation Error

0_0_28337815_387.cpp:1:1: error: 'package' does not name a type
 package hdu1000;
 ^
0_0_28337815_387.cpp:2:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_28337815_387.cpp:3:1: error: expected unqualified-id before 'public'
 public class Main {
 ^