View Compilation Error

0_0_32854314_26934.cpp:1:1: error: 'import' does not name a type
 import java.io.*;
 ^
0_0_32854314_26934.cpp:2:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_32854314_26934.cpp:3:1: error: 'import' does not name a type
 import java.math.BigInteger;  //java大数头文件；
 ^
0_0_32854314_26934.cpp:5:1: error: expected unqualified-id before 'public'
 public class Main
 ^