JavaEE编程实验 实验1 Java常用工具类编程(未完成)

时间:2023-03-10 01:14:51
JavaEE编程实验 实验1 Java常用工具类编程(未完成)

1.使用String类分割split将字符串“Solutions to selected exercises can be found in the electronic document The Thinking in Java Annotated Solution Guide,available for a small fee from BruceEckel”单词提取输出,单词以空格或','分隔

public static void main(String[] args) {
String str="Solutions to selected exercises can be found in the electronic document The Thinking in Java Annotated Solution Guide,available for a small fee from BruceEckel";
String[] string=str.split(" |,");
for (String string2 : string) {
System.out.print(string2+",");
}
}

2.设计一个类Student,类的属性有姓名,学号,出生日期,性别,所在系等。并生成学生类对象数组存储学生数据,然后按照学生的姓名将学生排序输出,使用String类的compareTo方法。函数原型输入两个学生对象,返回一个整型数字表示大小,以学生姓名为排序依据。

package com.littlepage.test2;

import java.util.Date;

public class Student implements Comparable<Student>{
private String name;
private int stuNum;
private Date birthDate;
private String sex;
private String department;
public Student() {
name="";
stuNum=;
birthDate=new Date();
sex="男";
department="";
}
public Student(String name, int stuNum, Date birthDate, String sex, String department) {
super();
this.name = name;
this.stuNum = stuNum;
this.birthDate = birthDate;
this.sex = sex;
this.department = department;
}
@Override
public String toString() {
return "Student [name=" + name + ", stuNum=" + stuNum + ", birthDate=" + birthDate + ", sex=" + sex
+ ", department=" + department + "]";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getStuNum() {
return stuNum;
}
public void setStuNum(int stuNum) {
this.stuNum = stuNum;
}
public Date getBirthDate() {
return birthDate;
}
public void setBirthDate(Date birthDate) {
this.birthDate = birthDate;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
@Override
public int compareTo(Student o) {
return this.getName().compareTo(o.getName());
}
}

3.设计一个程序,计算任意的一个日期与系统当前日期相差天数

public static void main(String[] args) {
Calendar c=Calendar.getInstance();
int y=;//年
int M=;//月
int d=;//日
int H=;//时
int m=;//分
int s=;//秒
c.set(Calendar.YEAR, y);
c.set(Calendar.MONTH, M-);
c.set(Calendar.DATE, d);
c.set(Calendar.HOUR_OF_DAY, H);
c.set(Calendar.MINUTE, m);
c.set(Calendar.SECOND, s);
Calendar now=Calendar.getInstance();
long aTime=now.getTimeInMillis();
long bTime=c.getTimeInMillis();
long cTime=aTime-bTime;
long sTime=cTime/;//时间差,单位:秒
long mTime=sTime/;
long hTime=mTime/;
long dTime=hTime/;
SimpleDateFormat f=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("当前时间:"+f.format(now.getTime()));
System.out.println("设定时间:"+f.format(c.getTime()));
System.out.println("时间差:"+dTime+"天"+hTime%+"时"+mTime%+"分"+sTime%+"秒");
}

3.设计一个日历类等相关方法,按照图15.1样式编制一个日历程序,复习Swing等相关知识