View Compilation Error

0_0_29484772_24899.cpp:1:6: error: expected constructor, destructor, or type conversion before ';' token
  
      ^
0_0_29484772_24899.cpp:2:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_29484772_24899.cpp:3:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_29484772_24899.cpp:5:1: error: expected unqualified-id before 'public'
 public class main {
 ^