實作使用者注冊功能
這是題目要求：
關于細節實作寫在代碼中咯：
package 注冊系統;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created with IntelliJ IDEA.
*
* @Auther: 風離
* @Date: 2020/10/19/13:59
* @Description:
*/
public class zhuce {
public static void main(String[] args) {
User u1=new User();
u1.getUsername();
u1.getPassword();
u1.getEmail();
u1.showtest();
}
}
class User{
private String username;
private String password;
private String email;
public String getUsername(){
boolean panduan=true;
String denglu[]={" ","_","'","\"","?"};
String username="";
while(panduan) {
System.out.println("請輸入賬号：");
Scanner input = new Scanner(System.in);
username = input.nextLine();
for(int i=0;i<denglu.length;i++)
{
if (username.length() >= 25 || username.contains(denglu[i])) {
System.out.println("輸入不符合規範請重新輸入");
}
else{
panduan=false;
}
}
}
this.username = username;
return username;
}
public String getPassword(){
//數字數組
String ShuZi[]={"0","1","2","3","4","5","6","7","8","9"};
//int ShuZi[]={0,1,2,3,4,5,6,7,8,9};
//字母數組
String ZiMu[]={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"
,"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};
//特殊字元數組
String ZiFu[]={"_","!","@","#","$","%","^","&","*"};
boolean panduan=true;
String password="";
while(panduan)
{ System.out.println("請輸入密碼：");
Scanner input = new Scanner(System.in);
password = input.nextLine();
if (password.length() <= 6 || password.length() >=18 || password.contains(" ") || password.contains("?")
) {
System.out.println("輸入不符合規範請重新輸入");
}
else{
panduan=false;
}}
int x=0,y=0;
boolean a1=false,b1=false,c1=false;
//判斷是否包含數字
String n[]=new String[10];
for(int i=0;i<=9;i++) {
n[i]=String.valueOf(i);
if(password.contains(n[i]))
{
a1=true;
}
}
//判斷是否包含字母
for(int j=0;j<ZiMu.length;j++) {
boolean b = password.contains(ZiMu[j]);
if (b ==true) {
b1 = true;
}
}
//判斷是否包含字元
for(int k=0;k<ZiFu.length;k++)
{ boolean c=password.contains(ZiFu[k]);
//這裡必須使用雙等号！！！
if(c==true)
{
c1=true;
}
}
//同時包含數字，字母，特殊字元
if(a1&&b1&&c1)
{
System.out.println("密碼強度高");
}
else if(a1&&c1||a1&&b1||b1&&c1)
{
System.out.println("密碼強度中");
}
else
{
System.out.println("密碼強度低");
}
this.password=password;
return password;
}
public String getEmail(){
boolean panduan=true;
String email="";
while(panduan) {
System.out.println("請輸入郵箱：");
Scanner input = new Scanner(System.in);
email = input.nextLine();
if(!email.contains("@")||appearNumber(email,"@")>1||email.startsWith("@")||email.endsWith("@"))
{
System.out.println("email格式輸入錯誤請重新輸入");
}
else{
panduan=false;
}
}
this.email=email;
return email;
}
//判斷字元串中包含幾個“@”
public static int appearNumber(String a,String b)
{
int count=0;
Pattern p=Pattern.compile(b);
Matcher m=p.matcher(a);
while(m.find()){
count++;
}
return count;
}
//顯示賬号密碼和郵箱
public void showtest(){
System.out.println("賬号："+username);
System.out.println("密碼："+password);
System.out.println("郵箱："+email);
}
}
運作截圖：
