View Compilation Error

0_0_38283877_39.cpp:1:1: error: 'package' does not name a type
 package com.demo2;
 ^
0_0_38283877_39.cpp:3:1: error: 'import' does not name a type
 import java.util.Scanner;
 ^
0_0_38283877_39.cpp:9:1: error: expected unqualified-id before 'public'
 public class HDU_oj2035 {
 ^