• java写的代码手机功能简单的

    import javax.microedition.lcdui.Command; import javax.microedition.lcdui.CommandListener; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.lcdui.Image; import javax.microedition.lcdui.ImageItem; import javax.microedition.lcdui.Item; import javax.microedition.lcdui.TextField; public class PhoneAdd extends Form { private UIController controller; private Command BACK_COMMAND; private Command SAVE_COMMAND; private TextField nameField; private TextField phoneField; private TextField QQField; private TextField sexField; private TextField ageField; // private ImageItem iconQQ; // private Image icon; public PhoneAdd(String title, UIController control) { super(title); controller = control; this.setCommandListener(new PhoneAddListener()); BACK_COMMAND = new Command("返回", Command.BACK, 1); SAVE_COMMAND = new Command("确认", Command.OK, 2); this.addCommand(BACK_COMMAND); this.addCommand(SAVE_COMMAND); /* try{ icon=Image.createImage("/icon/7.png"); }catch(java.io.IOException e){ icon=null; System.out.println("图片导入异常"); } */ nameField = new TextField("名字", "", 16, TextField.ANY); phoneField = new TextField("电话", "", 16, TextField.PHONENUMBER); QQField = new TextField("QQ", "", 11, TextField.NUMERIC); sexField = new TextField("性别", "", 2, TextField.ANY); ageField = new TextField("年龄","",3,TextField.NUMERIC); // iconQQ=new ImageItem("",icon,Item.LAYOUT_LEFT,"图片无法显示"); this.append(nameField); this.append(phoneField); this.append(sexField); // this.append(iconQQ); this.append(QQField); this.append(ageField); } public void clear() { nameField.setString(""); phoneField.setString(""); sexField.setString(""); QQField.setString(""); ageField.setString(""); } private class PhoneAddListener implements CommandListener { public void commandAction(Command command, Displayable disp) { if (command == BACK_COMMAND) { controller.handleEvent(UIController.EventID.EVENT_VIEW_BACK, null); } else if (command == SAVE_COMMAND) { String name = nameField.getString(); String phone = phoneField.getString(); String QQ = QQField.getString(); String sex = sexField.getString(); String age= ageField.getString(); if ((name == null || name.equals("")) || (phone == null || phone.equals(""))) { return; } Object[] args = { name, phone, QQ, sex ,age}; controller.handleEvent(UIController.EventID.EVENT_NEW_SAVE, args); } } } }

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  • 用java写的手机简单的功能有电话号码qq号码等功能

    import javax.microedition.lcdui.Alert; import javax.microedition.lcdui.Image; public class About extends Alert{ private Image icon=null; private final static String message="手机电话簿"; public About(String title){ super(title); setTimeout(FOREVER); try { icon=Image.createImage("/icon/3.png"); setImage(icon); } catch (java.io.IOException x) { } this.setString(message); } }

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  • java用类实现异常的处理的实例

    import java.util.*; class MyException extends Exception{ String message; MyException(int age){ message=age+"年龄异常"; } public String getMessage(){ return message; } } class People{ private int age; int getAge(){ return age; } void setAge(int age) throws MyException{ if(age>160||age<0){ MyException ex=new MyException(age); throw(ex); } this.age=age;//赋值 } } class TW{ public static void main(String args[]){ Scanner reader=new Scanner(System.in); System.out.printf("输入年龄:"); int x=reader.nextInt();//键盘输入 People a=new People(); try{ a.setAge(x); } catch(MyException e){ System.out.printf(e.getMessage()); System.exit(0); } System.out.println(a.getAge()); } }

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    2011-04-20
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  • java等差数列的写法

    用java语言实现等差数列public class dc{ int a,d,n; dc(int x,int y,int z){ a=x; d=y; n=z; } public int getSum(){ int z=0; for(int i=0;i<n;i++) { z=z+a; a=a+d; } return z; } } class test{ public static void main(String args[]){ dc de=new dc(1,1,4); int z=de.getSum(); System.out.println(z); } }

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