帮你做了一个,不知是否满意呢?
import javaappletApplet;
import javaawtButton;
import javaawtColor;
import javaawtGraphics;
import javaawtTextField;
import javaawteventActionEvent;
import javautilRandom;
import javautilVector;
public class Lottery extends Applet {
private static final long serialVersionUID = 1L;
int w,h;
Button ok,out,setup;
String[] msg;
TextField[] gaiLv;
TextField[] jiangPin;
int mx,ml;
int maxNum;
Random ran;
Vector<Integer> fist;
Vector<Integer> sec;
Vector<Integer> third;
Vector<Integer> lucky;
boolean lot=false;
boolean iserr=false;
boolean issetup=false;
String mesg="输入错误";
String priseMsg="继续努力!";
public void init(){
w=400;
h=220;
mx=20;
ml=40;
ran=new Random();
thissetSize(w, h);
thissetLayout(null);
ok=new Button("抽奖");
out=new Button("退出");
setup=new Button("确认设置");
msg=new String[4];
msg[0]="一等奖";
msg[1]="二等奖";
msg[2]="三等奖";
msg[3]="幸运奖";
gaiLv=new TextField[4];
jiangPin=new TextField[4];
for(int i=0;i<4;i++){
gaiLv[i]=new TextField("00"+(i+1));
thisadd(gaiLv[i]);
gaiLv[i]setBounds(mx+ml, 75+i26, 60, 18);
jiangPin[i]=new TextField();
thisadd(jiangPin[i]);
jiangPin[i]setBounds(mx+ml3, 75+i26, 80, 18);
}
thisadd(ok);
oksetBounds(260, 180, 60, 28);
okaddActionListener(new LotButtonAction(this));
thisadd(out);
outsetBounds(330, 180, 60, 28);
outaddActionListener(new LotButtonAction(this));
thisadd(setup);
setupsetBounds(110, 180, 80, 24);
setupaddActionListener(new LotButtonAction(this));
}
public void paint(Graphics g){
gsetColor(Colorwhite);
gfillRect(0, 0, thisgetWidth(), thisgetHeight());
gsetColor(new Color(230,255,230));
gfillRect(0, 0, w, 30);
gsetColor(ColorBLUE);
gdrawString("JAVA抽奖系统", 130, 20);
gsetColor(ColorORANGE);
gdrawRect(10, 40, 230, 170);
gsetColor(ColorBLACK);
gdrawString("设置", mx, 60);
gdrawString("概率", mx+ml, 60);
gdrawString("奖品", mx+ml3, 60);
for(int i=0;i<msglength;i++){
gsetColor(new Color(255-(i30),45,89));
gdrawString(msg[i], 20, 90+i26);
}
if(lot==true){
gsetColor(new Color(rannextInt(255),rannextInt(255),rannextInt(255)));
if(priseMsglength()<=7){
gdrawString(priseMsg, 260, 100);
}else{
gdrawString(priseMsgsubstring(0, 5), 260, 100);
gdrawString(priseMsgsubstring(5), 260, 120);
}
}
if(iserr==true){
gdrawString(mesg, 260, 100);
}
}
public void getLucky(){
float firu=1;
float secu=1;
float thiu=1;
float fouu=1;
float minu=1;
if(gaiLv[0]getText()trim()length()>1){
firu=FloatparseFloat(gaiLv[0]getText());
if(firu<=0||firu>=1){
iserr=true;
return;
}
if(firu<minu){
minu=firu;
}
}
if(gaiLv[1]getText()trim()length()>1){
secu=FloatparseFloat(gaiLv[1]getText());
if(secu<=0||secu>=1){
iserr=true;
return;
}
if(secu<minu){
minu=secu;
}
}
if(gaiLv[2]getText()trim()length()>1){
thiu=FloatparseFloat(gaiLv[2]getText());
if(thiu<=0||thiu>=1){
iserr=true;
return;
}
if(thiu<minu){
minu=thiu;
}
}
if(gaiLv[3]getText()trim()length()>1){
fouu=FloatparseFloat(gaiLv[3]getText());
if(fouu<=0||fouu>=1){
iserr=true;
return;
}
if(fouu<minu){
minu=fouu;
}
}
if(minu>=1||minu<=0){
iserr=true;
return;
}
float aNum=1/minu;
maxNum=(int)aNum;
int count=(int)(firu/minu);
if(firu!=1){
fist=getLotteryVec(maxNum,count);
}else{
fistremoveAllElements();
}
count=(int)(secu/minu);
if(secu!=1){
sec=getLotteryVec(maxNum,count);
}else{
secremoveAllElements();
}
count=(int)(thiu/minu);
if(thiu!=1){
third=getLotteryVec(maxNum,count);
}else{
thirdremoveAllElements();
}
count=(int)(fouu/minu);
if(fouu!=1){
lucky=getLotteryVec(maxNum,count);
}else{
luckyremoveAllElements();
}
issetup=true;
iserr=false;
}
protected Vector<Integer> getLotteryVec(int maxNum,int num){
Vector<Integer> result=new Vector<Integer>();
for(int i=0;i<num;i++){
resultadd(rannextInt(maxNum));
}
return result;
}
protected int getaNum(){
return rannextInt(maxNum);
}
public int isLucky(int pNum){
for(int i=0;i<fistsize();i++){
if(fistget(i)==pNum){
return 1;
}
}
for(int i=0;i<secsize();i++){
if(secget(i)==pNum){
return 2;
}
}
for(int i=0;i<thirdsize();i++){
if(thirdget(i)==pNum){
return 3;
}
}
for(int i=0;i<luckysize();i++){
if(luckyget(i)==pNum){
return 4;
}
}
return -1;
}
public void ButtonActionPerformed(ActionEvent e){
String acName=egetActionCommand();
if(acNameequals("抽奖")){
if(issetup==false){
priseMsg="请先设置参数!";
lot=true;
repaint();
lot=false;
return;
}
lot=true;
priseMsg=getResult(getaNum());
repaint();
// lot=false;
}else if(acNameequals("退出")){
thissetVisible(false);
thisstop();
thisdestroy();
Systemexit(0);
}else if(acNameequals("确认设置")){
lot=false;
getLucky();
repaint();
}
}
public String getResult(int num){
int resu=isLucky(num);
String result="";
switch(resu){
case -1:
result="继续努力!";
break;
case 1:
result="恭喜你!一等奖!\n获得"+jiangPin[0]getText();
break;
case 2:
result="恭喜你!二等奖!\n获得"+jiangPin[1]getText();
break;
case 3:
result="恭喜你!三等奖!\n获得"+jiangPin[2]getText();
break;
case 4:
result="恭喜你!幸运奖!\n获得"+jiangPin[3]getText();
break;
default:
result="继续努力!";
}
return result+num;
}
}
class LotButtonAction implements javaawteventActionListener{
Lottery su;
public LotButtonAction(Lottery bun){
thissu=bun;
}
@Override
public void actionPerformed(ActionEvent e) {
suButtonActionPerformed(e);
}
}
public class Test {
public static void main(String[] args) {
Trapezoid t = new Trapezoid(3, 4, 5);
Systemoutprintln(tarea());
}
}
class Trapezoid {
private double topline;
private double baseline;
private double height;
public Trapezoid() {
}
public Trapezoid(double topline, double baseline, double height) {
thistopline = topline;
thisbaseline = baseline;
thisheight = height;
}
public double area() {
return ((topline + baseline) height) / 2;
}
}
publicstaticvoidmain(String[]args){
StringBuilderbuffer=newStringBuilder();
//title
for(inti=1;i=5;i++){
bufferappend(i+;;t;+10i+;;t;+100i+;;t;+1000i+;;n;);
Systemoutprintln(buffertoString());
}你是要java可视化的还是控制台的啊?
控制台的话你可以用循环来取中奖号,将其存入list或set里(最好是set,因为set本来就不会重复)。如果用list存就另外写一个循环方法,来挨个判定该元素是不是已经在list中存在了,如果存在,就让选号的再加选一次,如果不重复,就放到list里去。ok
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