3D手机游戏开发实例源代码

				
				
				
				
				import javax.microedition.midlet.*;
				import javax.microedition.lcdui.*;
				import javax.microedition.rms.*;
				import java.io.*;
				/**
				 * MIDlet application that displays the M3G samples used in the 
				 * article. Each sample implements Sample and provides 
				 * the code to demonstrate a specific feature of the M3G API. The user
				 * interface consists of a list of such samples that can be selected 
				 * for execution. 
				 *
				 * @author Redhair 
				 */
				public class RMSMIDlet extends MIDlet 
				{
				
				
				   private RecordStore recordStore; 
				
				  
				
				 
				  
				  /**
				   * Starts application and shows the list of samples. The user can 
				   * select a sample for execution and return to the selection screen.
				   */
				  public void startApp()
				  {   
				   try{
				      recordStore = RecordStore.openRecordStore("test",true,RecordStore.AUTHMODE_PRIVATE,true);
				    }	//以参数createIfNecessary=true调用的时候不抛出RecordStoreNotFoundException异常。
				   catch(RecordStoreFullException e) {					//存储系统已满异常
				     System.out.println(e);
				   }catch(RecordStoreException e) {						//存储系统异常
				     System.out.println(e);
				   }
				  catch(IllegalArgumentException e)	{					//参数错误异常
				     System.out.println(e);
				   }	//可以只处理一个异常catch(Exception e){}。这样打印异常堆栈也可以知道具体的异常。
				  try{
				     recordStore.closeRecordStore();		//关闭打开的纪录
				     RecordStore.deleteRecordStore("test");	//删除前面创建的名为test的记录
				   }catch(RecordStoreNotOpenException e) { 	//记录没有打开的情况下关闭
				     System.out.println(e);
				   }catch(RecordStoreException e) {			//记录没有打开的情况下删除及其他存储系统异常
				    System.out.println(e);
				   }
				
				  System.out.println("execute over");
				      destroyApp(true);
				      notifyDestroyed();
				 
				  }
				  
				  /**
				   * Not used.
				   */
				  public void pauseApp()
				  {
				  }
				  
				  /**
				   * Not used.
				   */
				  public void destroyApp(boolean unconditional)
				  {
				  }
				  
				
				
				}