package chapter6;

import java.util.*;

public class demo5 {

    static public void main(String[] args) {

        Map<String, String> CtoE=new HashMap<String, String>();

        Map<String, String> EtoC=new HashMap<String, String>();

        Scanner sc=new Scanner(System.in);

        while(true) {

            System.out.println("按1+enter-----添加词汇");

            System.out.println("按2+enter-----删除词汇");

            System.out.println("按3+enter-----英文译中");

            System.out.println("按4+enter-----中文译英");

            System.out.println("按0+enter-----结束进程");

            int con1=sc.nextInt();

            if(con1==0) {

                System.out.println("系统已退出");

                break;

            }

            switch(con1) {

                case 1:    System.out.println("请输入要加的英文单词");

                        String Eng=sc.next();

                        System.out.println("请输入该单词的中文");

                        String Chi=sc.next();

                        CtoE.put(Chi,Eng);

                        EtoC.put(Eng,Chi);

                        break;

                case 2:    System.out.println("请输入要删的英文单词");

                        String Eng1=sc.next();

                        CtoE.remove(EtoC.get(Eng1));

                        EtoC.remove(Eng1);

                        System.out.println("删除成功");

                        break;

                case 3:    System.out.println("请输入英文单词");

                        String Eng2=sc.next();

                        System.out.println(Eng2+"的中文："+EtoC.get(Eng2));

                        break;

                case 4:    System.out.println("请输入中文翻译");

                        String Chi1=sc.next();

                        System.out.println(Chi1+"的英文："+CtoE.get(Chi1));

                        break;

                default:System.out.println("请输入正确指令!");

                        break;

            }

        }

    sc.close();

    }

}