View Compilation Error

0_0_30231640_23356.cpp:1:2: error: expected unqualified-id before numeric constant
  1 import java.util.*;  
  ^
0_0_30231640_23356.cpp:2:2: error: expected unqualified-id before numeric constant
  2 import java.math.BigInteger;  
  ^
0_0_30231640_23356.cpp:3:2: error: expected unqualified-id before numeric constant
  3 public class Main{  
  ^