Java实现抽奖功能（简单易懂的抽奖模板）盲盒抽奖都可以用上，进来包会

public class Goods { public Goods(String name, int wight) { this.name = name; this.wight = wight; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getWight() { return wight; } public void setWight(int wight) { this.wight = wight; } private String name; //商品名 private int wight ; //权重}

public class Container { public Container(String name, int num) { this.name = name; this.num = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } // 容器 private String name; private int num;//抽奖会用上}

import java.util.ArrayList;import java.util.HashMap;import java.util.List;public class Lottery { public static String draw(){// 列出商品 Goods goods1 =new Goods("洗洁精",20); Goods goods2 =new Goods("大米",10); Goods goods3 =new Goods("火彩盒",5); Goods goods4 =new Goods("lv包包",15); Goods goods5 =new Goods("macbook",22); Goods goods6 =new Goods("ipadpro2020",24); Goods goods7 =new Goods("火影忍者全套漫画集",4);// 开始抽奖 int sum=0;//总数 int n=0 ;//用于抽奖 int a1=0; int a2=0; List containers =new ArrayList<>(); containers.add(new Container(goods1.getName(),sum+=goods1.getWight())); containers.add(new Container(goods2.getName(),sum+=goods2.getWight())); containers.add(new Container(goods3.getName(),sum+=goods3.getWight())); containers.add(new Container(goods4.getName(),sum+=goods4.getWight())); containers.add(new Container(goods5.getName(),sum+=goods5.getWight())); containers.add(new Container(goods6.getName(),sum+=goods6.getWight())); containers.add(new Container(goods7.getName(),sum+=goods7.getWight())); int num =(int)(Math.random()*sum+1); //1到权重总和的一个随机数字 for(int i=0;i=a1&&num