试验⑦ 仅供娱乐！！

import java.io.IOException;import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class MoveView extends MIDlet { private Display display;
private MyCanvas myCanvas;
public MoveView() {
// TODO Auto-generated constructor stub
display=Display.getDisplay(this);
myCanvas=new MyCanvas();
} protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub } protected void pauseApp() {
// TODO Auto-generated method stub } protected void startApp() throws MIDletStateChangeException {
// TODO Auto-generated method stub
display.setCurrent(myCanvas);
}
class MyCanvas extends Canvas{ int x=0,y=0;
Image image;
public MyCanvas(){
try {
image=Image.createImage("/ali.png");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void paint(Graphics arg0) {
// TODO Auto-generated method stub
arg0.setColor(255,255,255);
arg0.fillRect(0, 0, getWidth(), getHeight());
arg0.drawImage(image, x, y, Graphics.LEFT|Graphics.TOP);
}
protected void keyPressed(int keyCode) {
// TODO Auto-generated method stub
switch(getGameAction(keyCode)){
case UP:{
y-=5;
if(y<0) y=y+5;
break;
}
case DOWN:{
y+=5;
if(y>this.getHeight()-image.getHeight()) y=y-5;
break;
}
case LEFT:{
x-=5;
if(x<0) x=x+5;
break;
}
case RIGHT:{
x+=5;
if(x>getWidth()-image.getWidth())x-=5;
break;
}
}
repaint();
}
}
}

2:

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class MoveBoll extends MIDlet { private Display display;
private MyCanvas myCanvas;
public MoveBoll() {
// TODO Auto-generated constructor stub
display=Display.getDisplay(this);
myCanvas=new MyCanvas();
} protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub } protected void pauseApp() {
// TODO Auto-generated method stub } protected void startApp() throws MIDletStateChangeException {
// TODO Auto-generated method stub
display.setCurrent(myCanvas);
}
class MyCanvas extends Canvas{ private int r=100;
public MyCanvas(){
}
protected void paint(Graphics arg0) {
// TODO Auto-generated method stub
arg0.setColor(255,255,255);
arg0.fillRect(0, 0, getWidth(), getHeight());
arg0.setColor(255, 0, 0);
arg0.fillArc(getWidth()/2-r/2, getHeight()/2-r/2, r, r, 0, 360);
}
protected void keyPressed(int keyCode) {
// TODO Auto-generated method stub
switch(getGameAction(keyCode)){
case UP:{
r+=5;
break;
}
case DOWN:{
r-=5;
break;
}
}
repaint();
}
}
}

3

public class GameView extends MIDlet implements CommandListener { private Display display;
private MyCanvas myCanvas;
private Form newGame,grade,help;
private Command back;
private StringItem string[]=new StringItem[3];
public GameView() {
// TODO Auto-generated constructor stub
string[0]=new StringItem("王二","100");
string[1]=new StringItem("张三","99");
string[2]=new StringItem("李四","98");
back=new Command("返回",Command.EXIT,1);
display=Display.getDisplay(this);
myCanvas=new MyCanvas();
newGame=new Form("新游戏");
newGame.append("即将开始新的征程...");
grade=new Form("高分榜",string);
help=new Form("帮助");
help.append("欢迎查看游戏帮助...");
newGame.addCommand(back);
grade.addCommand(back);
help.addCommand(back);
grade.setCommandListener(this);
help.setCommandListener(this);
newGame.setCommandListener(this);
} protected void destroyApp(boolean arg0){
// TODO Auto-generated method stub } protected void pauseApp() {
// TODO Auto-generated method stub } protected void startApp() throws MIDletStateChangeException {
// TODO Auto-generated method stub
display.setCurrent(myCanvas);
}
class MyCanvas extends Canvas{ private int x=getWidth()/2-50;
private int y=getHeight()/2-30;
public MyCanvas(){
}
protected void paint(Graphics arg0) {
// TODO Auto-generated method stub
arg0.setColor(255,255,255);
arg0.fillRect(0, 0, getWidth(), getHeight());
arg0.setColor(0, 0, 0);
arg0.setFont(Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE));
arg0.drawString("新游戏", getWidth()/2-50, getHeight()/2-30, Graphics.LEFT|Graphics.TOP);
arg0.drawString("高分榜", getWidth()/2-50, getHeight()/2, Graphics.LEFT|Graphics.TOP);
arg0.drawString("帮助", getWidth()/2-50, getHeight()/2+30, Graphics.LEFT|Graphics.TOP);
arg0.drawString("退出", getWidth()/2-50, getHeight()/2+60, Graphics.LEFT|Graphics.TOP);
arg0.drawRect(x, y, 50, 20);
}
protected void keyPressed(int keyCode) {
// TODO Auto-generated method stub
switch(getGameAction(keyCode)){
case UP:
y-=30;
if(y<getHeight()/2-30) y=y+30;
break;
case DOWN:
y+=30;
if(y>getHeight()/2+60) y-=30;
break;
case FIRE:
if(y==getHeight()/2-30){
display.setCurrent(newGame);
}
if(y==getHeight()/2){
display.setCurrent(grade);
}
if(y==getHeight()/2+30){
display.setCurrent(help);
}
if(y==getHeight()/2+60){
destroyApp(true);
notifyDestroyed();
}
}
repaint();
}
}
public void commandAction(Command arg0, Displayable arg1) {
// TODO Auto-generated method stub
if(arg0==back){
display.setCurrent(myCanvas);
}
}
}