View Compilation Error

0_0_36711101_27725.cpp:1:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_36711101_27725.cpp:2:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_36711101_27725.cpp:4:1: error: expected unqualified-id before 'public'
 public class hdu {
 ^