int year, month, day;
public Date(int year, int month, int day) { this.year = year; this.month = month; this.day = day; }
public Date() { }
public int getDay() { return day; }
public void setDay(int day) { this.day = day; }
public int getMonth() { return month; }
public void setMonth(int month) { this.month = month; }
public int getYear() { return year; }
public void setYear(int year) { this.year = year; }
@Override
public String toString() {
return year + \年\月\日\ } }
Stu类：package Student; import exp4_1.*; public class Stu {
String no; String name; Date birthday; Score score;
public Stu(String no, String name) { this.no = no;
this.name = name; birthday=new Date(); score=new Score(); }
public String getName() {
return name; }
public void setBirthday(int y ,int m,int d) { this.birthday.setYear(y); this.birthday.setMonth(m); this.birthday.setDay(d); }
public void setScore(int c,int m,int e) { this.score.chinese=c; this.score .math=m; this.score.english=e; this.score.setChinese(e); this.score.setMath(m); this.score.setEnglish(e); }
public void setName(String name) { this.name = name; }
public String getNo() { return no; }
public void setNo(String no) {
this.no = no; }
public void printstu(){
System.out.println(\学号:\ System.out.println(\姓名:\
System.out.println(\出生日期:\ System.out.println(\成绩:\ } }
Score类: package Student; public class Score {
int chinese,math,english;
this.chinese = chinese; this.math = math;
this.english = english; }
public Score() { }
public int getChinese() { return chinese; }
public int getMath() { return math; }
public int getEnglish() { return english; }
public void setChinese(int chinese) { this.chinese = chinese; }
public void setMath(int math) { this.math = math; }
public Score(int chinese, int math, int english) {
public void setEnglish(int english) { this.english = english; }
@Override
public String toString() {
return \语文:\数学:\英语:\
} }
2.将课程的编码、课程名称、考试日期、教师姓名 定义为类变量，并添加一个类方法用于设置这些类变量的值，添加一个类方法用于输出这些类变量的值，在主方法中通过类名.类方法名设置课程信息和输出，而学生信息通过构造方法设置。
Exp5_2类：package exp5_2; public class Exp5_2 {
public static void main(String[] args) { ScoreReport stu[]=new ScoreReport[2];
ScoreReport.setCourse(\数分\李教授\
stu[0]=new ScoreReport(\小李\ stu[1]=new ScoreReport(\小陈\ ScoreReport.printCourse(); System.out.println(stu[0]); System.out.println(stu[1]); } }
ScoreReport类：package exp5_2; public class ScoreReport { static String courseID; static String courseName; static String testDate; static String teacherName;
String stuID; String strName; int score;
public static void setCourse(String ID,String Name,String Date,String teacher)
{
courseID=ID;
courseName=Name; testDate=Date;
teacherName=teacher; }
public ScoreReport(String stuID, String strName, int score) {
this.stuID = stuID;
this.strName = strName; this.score = score; }
public static String getCourseID() {
return courseID; }
public static String getCourseName() {
return courseName; }
public int getScore() {
return score; }
public void setScore(int score) { this.score = score; }
public String getStrName(String strName) {