View Compilation Error

0_0_21224420_12896.cpp:1:1: error: 'package' does not name a type
 package com.xiacm.main;
 ^
0_0_21224420_12896.cpp:3:1: error: 'import' does not name a type
 import java.io.FileInputStream;
 ^
0_0_21224420_12896.cpp:4:1: error: 'import' does not name a type
 import java.io.FileNotFoundException;
 ^
0_0_21224420_12896.cpp:5:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_21224420_12896.cpp:7:1: error: expected unqualified-id before 'public'
 public class Main {
 ^