http://www.xianlaiwan.cn/article/16505 歡迎交流
2017-02-21
這兩小節突然聽不懂了,我以前還學過異常處理。感覺不對勁啊,異常處理就是有可能發生的異常,提前做好輸出語句來代替 即將出現異常時的亂碼。把亂碼變成客戶能看懂的語句。
2017-02-20
右鍵--》Source -->Generate hashcode() and equals(),彈出框中選中name,確定。
2017-02-20
SetStudent ss = new SetStudent();
ss.testAdd();
ss.testForeach();
Student student = new Student();
student.id="1";
student.name="小名";
System.out.println("請學生:"+student.name+"同學選課");
ss.testAdd();
ss.testForeach();
Student student = new Student();
student.id="1";
student.name="小名";
System.out.println("請學生:"+student.name+"同學選課");
2017-02-18
Scanner sc = new Scanner(System.in);
for(int i = 0;i < 3; i++){
System.out.println("請輸入課程ID");
String courseId = sc.next();
for (Course cr : ss.courseToSelect) {
if(cr.id.equals(courseId)){
student.course.add(cr);
}
}
}
ss.testForeach();
for(int i = 0;i < 3; i++){
System.out.println("請輸入課程ID");
String courseId = sc.next();
for (Course cr : ss.courseToSelect) {
if(cr.id.equals(courseId)){
student.course.add(cr);
}
}
}
ss.testForeach();
2017-02-18