http://www.imooc.com/article/16505 欢迎交流
2017-02-21
这两小节突然听不懂了,我以前还学过异常处理。感觉不对劲啊,异常处理就是有可能发生的异常,提前做好输出语句来代替 即将出现异常时的乱码。把乱码变成客户能看懂的语句。
2017-02-20
右键--》Source -->Generate hashcode() and equals(),弹出框中选中name,确定。
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("请学生:"+student.name+"同学选课");
ss.testAdd();
ss.testForeach();
Student student = new Student();
student.id="1";
student.name="小名";
System.out.println("请学生:"+student.name+"同学选课");
2017-02-18
Scanner sc = new Scanner(System.in);
for(int i = 0;i < 3; i++){
System.out.println("请输入课程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("请输入课程ID");
String courseId = sc.next();
for (Course cr : ss.courseToSelect) {
if(cr.id.equals(courseId)){
student.course.add(cr);
}
}
}
ss.testForeach();
2017-02-18