using System;
using System.Collections.Generic;
using System.Text;
namespace DealWithScreenOrientation
{
struct BookInfo
{
public string ISBN;
public string Title;
public string Aut
package com.power.pipeengine.Entity;
import java.util.*;
import com.power.pipeengine.InputData.*;
public class Material extends com.power.pipeengine.Entity.Entity
{
private String _materi
