My first J2EE program: query the age based on the Chinese zodiac

Import java. Io. ioexception;
Import java. util. calendar;
Import javax. microedition. lcdui. Command;
Import javax. microedition. lcdui. commandlistener;
Import javax. microedition. lcdui. display;
Import javax. microedition. lcdui. displayable;
Import javax. microedition. lcdui. form;
Import javax. microedition. lcdui. image;
Import javax. microedition. lcdui. item;
Import javax. microedition. lcdui. List;
Import javax. microedition. lcdui. stringitem;
Import javax. microedition. lcdui. Ticker;
Import javax. microedition. MIDlet. MIDlet;
Import javax. microedition. MIDlet. midletstatechangeexception;

Public class medlet1 extends MIDlet implements commandlistener {

Private list lst = new list ("select the Chinese zodiac you want to query", list. Exclusive );
Private display DIS;
Private command cmd1 = new command ("OK", command. screen, 1 );
Private command cmd2 = new command ("return", command. screen, 1 );
Private command cmd3 = new command ("quit", command. Back, 1 );
Private form FRM = new form ("query result ");
Calendar c = calendar. getinstance ();
Private stringitem str1 = new stringitem ("", "", item. layout_left );
Private stringitem str2 = new stringitem ("","");
Private stringitem str3 = new stringitem ("","");
Private stringitem str4 = new stringitem ("","");
Private stringitem str5 = new stringitem ("","");
Private stringitem str6 = new stringitem ("","");
Private stringitem str7 = new stringitem ("","");
Private stringitem str8 = new stringitem ("","");
Private stringitem str9 = new stringitem ("","");
Public medlet1 (){
}
Protected void Startapp () throws midletstatechangeexception {
// Todo auto-generated method stub
Dis = display. getdisplay (this );
Dis. setcurrent (LST );
Image img1 = NULL;

Try {
Img1 = image. createimage ("/img1.png ");
} Catch (ioexception e ){
// Todo auto-generated Catch Block
E. printstacktrace ();
}
 
 
Lst. append ("pig", null );
Lst. append ("e-dog", null );
Lst. append ("", null );
Lst. append ("monkey", null );
Lst. append ("Wuyang", null );
Lst. append ("Midday horse", null );
Lst. append ("snake", null );
Lst. append ("Chen long", null );
Lst. append ("rabbit", null );
Lst. append ("tiger", null );
Lst. append ("ugly cow", null );
Lst. append ("rat", null );

Lst. addcommand (cmd1 );
Lst. setticker (new ticker ("the function of this program is to query the age based on the Zodiac. Author: Gu Fang "));

FRM. addcommand (cmd2 );
FRM. addcommand (cmd3 );
 


FRM. setticker (new ticker ("the function of this program is to query the age based on the Zodiac. Author: Gu Fang "));
FRM. append (str1 );
FRM. append (str2 );
FRM. append (str3 );
FRM. append (str4 );
FRM. append (str5 );
FRM. append (str6 );
FRM. append (str7 );
FRM. append (str8 );

FRM. append (str9 );

FRM. append (img1 );
Lst. setcommandlistener (this );


}

Protected void destroyapp (Boolean arg0) throws midletstatechangeexception {
// Todo auto-generated method stub

}

Protected void pauseapp (){
// Todo auto-generated method stub

}
Public void commandaction (command arg0, displayable arg1 ){
Int jieguo, nianling;

String STR;

Jieguo = lst. getselectedindex ();
Nianling = jieguo + (C. Get (calendar. Year)-2008) + 1; // the serial number of the lst plus the difference between the current year and 2008 (08 years is the year of the mouse)
STR = string. valueof (nianling );
Dis. setcurrent (FRM );

FRM. setcommandlistener (this );

Str1.settext ("this Chinese zodiac this year" + STR + "");
Str2.settext (string. valueof (nianling + 12) + "");
Str3.settext (string. valueof (nianling + 24) + "");
Str4.settext (string. valueof (nianling + 36) + "");
Str5.settext (string. valueof (nianling + 48) + "");
Str6.settext (string. valueof (nianling + 60) + "");
Str7.settext (string. valueof (nianling + 72) + "");
Str8.settext (string. valueof (nianling + 84) + "");


If (arg0 = cmd2 ){

Dis. setcurrent (LST );
} Else if (arg0 = cmd3 ){
Yydestroyed ();
}

}

}