View Compilation Error

0_0_19485190_27921.cpp:1:1: error: 'package' does not name a type
 package czx;
 ^
0_0_19485190_27921.cpp:3:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_19485190_27921.cpp:5:1: error: expected unqualified-id before 'public'
 public class Main{
 ^