View Compilation Error

0_0_17202682_32726.cpp:3:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_17202682_32726.cpp:4:1: error: 'import' does not name a type
 import java.util.HashMap;
 ^
0_0_17202682_32726.cpp:5:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_17202682_32726.cpp:7:1: error: expected unqualified-id before 'public'
 public class Main {
 ^