2.乐学成语-------------编写动物类

package cn.edu.bztc.happyidiom.entity;

public class Animal {
private int id;
private String name;//成语名称
private String pronounce;//成语发音
private String explain;//成语解释
private String antonym;//反义词
private String homoionym;//同义词
private String derivation;//源自
private String examples;//例子
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPronounce() {
return pronounce;
}
public void setPronounce(String pronounce) {
this.pronounce = pronounce;
}
public String getExplain() {
return explain;
}
public void setExplain(String explain) {
this.explain = explain;
}
public String getAntonym() {
return antonym;
}
public void setAntonym(String antonym) {
this.antonym = antonym;
}
public String getHomoionym() {
return homoionym;
}
public void setHomoionym(String homoionym) {
this.homoionym = homoionym;
}
public String getDerivation() {
return derivation;
}
public void setDerivation(String derivation) {
this.derivation = derivation;
}
public String getExamples() {
return examples;
}
public void setExamples(String examples) {
this.examples = examples;
}

}

package cn.edu.bztc.happyidiom.dao;

import java.util.ArrayList;
import java.util.List;

import cn.edu.bztc.happyidiom.db.DBOpenHelper;
import cn.edu.bztc.happyidiom.entity.Animal;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

public class AnimalDao {
private static AnimalDao animalDao;
private SQLiteDatabase db;
/**
* 将构造方法私有化
*/
private AnimalDao(Context context){
DBOpenHelper dbHelper = new DBOpenHelper(context);
db=dbHelper.openDatabase();
}
/**
* 获取AnimalDao的实例。
*/
public synchronized static AnimalDao getInstance(Context context){
if(animalDao==null){
animalDao = new AnimalDao(context);
}
return animalDao;
}
/**
* 从数据库读取所有的动物类成语。
*/
public List<Animal> getAllAnimals(){
List <Animal> list=new ArrayList<Animal>();
Cursor cursor = db.query("animal",null,null,null,null,null,null);
if(cursor.moveToFirst()){
do{
Animal animal = new Animal();
animal.setId(cursor.getInt(cursor.getColumnIndex("_id")));
animal.setName(cursor.getString(cursor.getColumnIndex("name")));
animal.setPronounce(cursor.getString(cursor.getColumnIndex("pronounce")));
animal.setExplain(cursor.getString(cursor.getColumnIndex("explain")));
animal.setAntonym(cursor.getString(cursor.getColumnIndex("antonym")));
animal.setHomoionym(cursor.getString(cursor.getColumnIndex("homoionym")));
animal.setDerivation(cursor.getString(cursor.getColumnIndex("derivation")));
animal.setExamples(cursor.getString(cursor.getColumnIndex("examples")));
list.add(animal);
}while(cursor.moveToNext());
}
return list;
}
}

package cn.edu.bztc.happyidiom.test;

import java.util.List;

import cn.edu.bztc.happyidiom.dao.AnimalDao;
import cn.edu.bztc.happyidiom.entity.Animal;
import android.test.AndroidTestCase;

public class AnimalDaoTest extends AndroidTestCase {
public void testGetAllAnimals(){
AnimalDao animalDao=AnimalDao.getInstance(getContext());
List <Animal> animals = animalDao.getAllAnimals();
System.out.println(animals.size());
for(Animal animal:animals){
System.out.println(animal.getName());
}
}
}