View Compilation Error

0_0_20898626_9882.cpp:5:1: error: 'package' does not name a type
 package acm;
 ^
0_0_20898626_9882.cpp:7:1: error: 'import' does not name a type
 import java.math.BigInteger;
 ^
0_0_20898626_9882.cpp:8:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_20898626_9882.cpp:11:1: error: expected unqualified-id before 'public'
 public class t {
 ^