【无标题】1.设计一个敏感词过滤程序2.国庆倒计时3.使用Map集合来做一个不同姓氏人数的统计4.模拟扑克牌

.设计一个敏感词过滤程序

package demo02;

import java.util.Scanner;

public class WordFilter {

    private String[] str={"枪","死","打劫","共产党"};

    public String[] getStr() {
        return str;
    }
    public void setStr(String[] str) {
        this.str = str;
    }
    public static String    filter(){
        String word=null;
        try {
            word=new Scanner(System.in).next();
        } catch (Exception e) {
            word=filter();
        }
        return word;
    }
    public void ceshi(){
        System.out.println("请输入第一个字符串：");
        String inputword= WordFilter.filter();
        for (String word:str) {
            if (word.contains(word)){
                int len=word.length();
                String k="*";
                for (int j = 0; j < len-1; j++) {
                    k+="*";
                }
                inputword=inputword.replace(word, k);
            }
        }
        System.out.println(inputword);
    }

    public static void main(String[] args) {
        WordFilter mgan = new WordFilter();
        mgan.ceshi();

    }
}

2.国庆倒计时

package demo02;
import javax.swing.*;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

public class GdDate {
    public static class Countdown {
        long gdDate;
        long newDate;
        long millisecond;
        long day,hour,minutes,seconds;

        public Countdown(){
            CDown();
        }

        private void CDown() {
            Timer t = new Timer();
            final JLabel j = new JLabel();
            t.schedule(new TimerTask() {
                @Override
                public void run() {
                    Calendar c = Calendar.getInstance();
                    c.set(2022,10,1,0,0,0);
                    gdDate = c.getTimeInMillis();
                    newDate = new Date().getTime();
                    millisecond = gdDate - newDate;
                    System.out.println("毫秒差为：" + millisecond);
                    day = ((millisecond / 1000) / (3600 * 24));
                    hour = ((millisecond / 1000) - day * 86400) / 3600;
                    minutes = ((millisecond / 1000) - day * 86400 - hour * 3600) / 60;
                    seconds = (millisecond / 1000) - day * 86400 - hour * 3600 - minutes * 60;
                    System.out.println((" 国庆倒计时还有：" + day + " 天 " + hour + " 时 " + minutes + " 分 " + seconds + " 秒 "));
                }
            },0,1000);
        }

        public static void main(String[] args) {
            new Countdown();
        }

    }
    }

使用Map集合来做一个不同姓氏人数的统计

package demo02;

import java.util.HashMap;
import java.util.Map;

public class Xingshi {
        public static void main(String[] args) {
            String[] name = new  String[]{"张三","李四","王二","王大锤","张天","刘星","张浩"};
            Map map = new HashMap();
            String zhang = null;
            String wang = null;
            String li = null;
            String liu = null;

            int num = 0;
            int num1 = 0;
            int num2 = 0;
            int num3 = 0;
            for (int i =0 ; i 
 
 4.模拟扑克牌
 
package demo02;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;


public class Poker {
        //一副牌
        private static List pokerList;
        private static ArrayList A;
        private static ArrayList B;
        private static ArrayList C;


        //无参构造器，初始化一副牌
        public Poker() {
            String[]colors={"♠","♥","♣","♦"};
            pokerList = new ArrayList<>();
            A = new ArrayList<>();
            B = new ArrayList<>();
            C = new ArrayList<>();
            //接下来生成牌
            //A牌的四种花色
            for (int i = 0; i < colors.length; i++) {//四种花色
                PokerCard pc = new PokerCard(colors[i], "A");
                pokerList.add(pc);
            }
            //2-10的牌
            for (int i = 2; i <= 10; i++) {
                //2-10牌的四种花色
                for (int j = 0; j < colors.length; j++) {//四种花色
                    PokerCard pc = new PokerCard(colors[j], i+"");
                    pokerList.add(pc);
                }
            }
            //JQK牌的四种花色
            for (int i = 0; i < colors.length; i++) {//四种花色
                PokerCard pc = new PokerCard(colors[i], "J");
                pokerList.add(pc);
            }
            for (int i = 0; i < colors.length; i++) {//四种花色
                PokerCard pc = new PokerCard(colors[i], "Q");
                pokerList.add(pc);
            }
            for (int i = 0; i < colors.length; i++) {//四种花色
                PokerCard pc = new PokerCard(colors[i], "K");
                pokerList.add(pc);
            }
            //大小王
            PokerCard pc1 = new PokerCard(null, "大王");
            pokerList.add(pc1);
            PokerCard pc2 = new PokerCard(null, "小王");
            pokerList.add(pc2);
        }
        //洗牌
        public static void xipai(){
            Collections.shuffle(pokerList);
        }

        //发牌
        public static void fapai(){
            A.clear();
            B.clear();
            C.clear();
            for (int i = 0; i < pokerList.size(); i++) {
                if (i % 3 == 0){
                    A.add(pokerList.get(i));
                }
                if (i % 3 == 1){
                    B.add(pokerList.get(i));
                }
                if (i % 3 == 2){
                    C.add(pokerList.get(i));
                }
            }
        }

        public List getPokerList() {
            return pokerList;
        }

        public void setPokerList(List pokerList) {
            this.pokerList = pokerList;
        }

        public static void main(String[] args) {
            Poker poker = new Poker();
            System.out.println(poker.getPokerList());
            xipai();
            fapai();
            System.out.println("小范A" + A);
            System.out.println("达达B" + B);
            System.out.println("小贾C" + C);
        }
    }

 
package demo02;

public class PokerCard {
        private String color;   //花色
        private String cardNum; //牌号

        public PokerCard() {
        }

        public PokerCard(String color, String cardNum) {
            this.color = color;
            this.cardNum = cardNum;
        }

        public String getColor() {
            return color;
        }

        public void setColor(String color) {
            this.color = color;
        }

        public String getCardNum() {
            return cardNum;
        }

        public void setCardNum(String cardNum) {
            this.cardNum = cardNum;
        }

        @Override
        public String toString() {
            return color + cardNum ;
        }
    }