实验5字符串的操作

升序排序并输出*/
import java.util.Scanner;
public class StudentSort {
public static void main(String[] args) {
StudentSort st = new StudentSort();
st.ห้องสมุดไป่ตู้utsort();
}
public void cutsort() {
10.ch.checkup(str);
11.sc.close();
12.}
13.
14.public void checkup(String str) {
15.String patternStr1 = "([0-9]|[a-zA-Z]){8,16}";
16.String patternStr2 = ".*\\d.*\\d.*";
21.} else {
22.System.out.println(" Invalid password ");
23.}
24.}
25.}
26.String patternStr2 = ".*\\d.*\\d.*";
27.boolean result1 = Pattern.matches(patternStr1, str);
}
for (int k = 0; k < st.length; k++)
System.out.println(st[k]);
}
}
class Student {
public String name;
private String id;
private String date;
public String getName() {
String str1 = stArr[1];
String str2 = stArr[3];
String str3 = stArr[4];
st[i].setName(str1);
st[i].setId(str2);
st[i].setDate(str3);
}
}
sc.close();
for (int j = 0; j < st.length; j++)
任超,任超,,20092212239,2011-11-4 9:06:56
杨阳,杨阳,,20092212302,2011-11-4 9:06:54
都英健,都英健,,20092212229,2011-11-4 9:07:04
要求从用户输入的多行文本中提取学生的姓名、学号及登录日期，并封装到
Student类中作为类的私有属性。创建一个Student类型的对象数组，对学号进行
return name;
}
public void setName(String name) {
= name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getDate() {
33.}
34.}
35.}
要求从用户输入的多行文本中提取学生的姓名、学号及登录日期，并封装到Student类中作为类的私有属性。创建一个Student类型的对象数组，对学号进行升序排序并输出
/*从键盘输入多行文本，格式如下：
学生端名称,姓名,班级名称,学生ID,注册时间
姜涛,姜涛,,20092212232,2011-11-4 9:06:56
28.boolean result2 = Pattern.matches(patternStr2, str);
29.if (result1 && result2) {
30.System.out.println(" valid password");
31.} else {
32.System.out.println(" Invalid password ");
Scanner sc = new Scanner(System.in);
System.out.println("请输入学生的数量：");
int num = sc.nextInt();
sc.nextLine();
Student[] st = new Student[num];
for (int i = 0; i < num; i++) {
st[i] = new Student();
System.out.println("请输入第" + (i + 1) + "个学生的信息：");
String str = sc.nextLine();
String[] stArr = str.split("[,|\\s]");
for (int a = 0; a < stArr.length; a++) {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String toString(){
return name+id+date;
}
}
17.boolean result1 = Pattern.matches(patternStr1, str);
18.boolean result2 = Pattern.matches(patternStr2, str);
19.if (result1 && result2) {
20.System.out.println(" valid password");
for (int k = 0; k < st.length; k++)
if (st[j].getId().compareTo(st[k].getId()) < 0) {
Student stu = new Student();
stu = st[j];
st[j] = st[k];
st[k] = stu;
5.public static void main(String[] args) {
6.System.out.println("请输入密码：");
7.Scanner sc = new Scanner(System.in);
8.String str = sc.next();
9.Check ch = new Check();
博客网站设定了校验密码的规则，编写方法检验一个字符串是否是合法的密码。规则如下：密码长度在8-16之间密码只能包含字母和数字密码必须存在至少2个数字如果用户输入的密码符合
2.import java.util.Scanner;
3.import java.util.regex.Pattern;
4.public class Check {