View Compilation Error

0_0_22261662_7094.cpp:1:1: error: 'import' does not name a type
 import java.util.*;
 ^
0_0_22261662_7094.cpp:2:1: error: 'import' does not name a type
 import java.io.*;
 ^
0_0_22261662_7094.cpp:3:1: error: 'import' does not name a type
 import java.math.*;
 ^
0_0_22261662_7094.cpp:5:1: error: expected unqualified-id before 'public'
 public class BigInt {
 ^