public static void main(String[] args) {
Colleges c = new Colleges();
Student s = new Student();
Teacher t = new Teacher();
c.setName("***科技学院");
c.setNum(16000);
c.setArea(800);
s.setName1("秦*盛");
s.setGrade("测绘B111");
s.setMajor("建筑工程学院");
t.setName("王老师");
t.setCurriculum("Java 编程");
System.out.println(c.getName() + " 有 " + c.getNum() + "名学生" + "占地面积" + c.getArea() + "亩");
System.out.println(t.getName() + "在" + c.getName() + "教授" + t.getCurriculum());
System.out.println(
s.getName1()
+ "就读于"
+ s.getMajor()
+ s.getGrade()
+ "在上"
+ t.getName()
+ "的"
+ t.getCurriculum());
}
@Test
public void gradeTest() {
System.out.println("StudentTest");
Student instance = new Student();
double expResult = 0.0;
double result = instance.getGrade();
assertEquals(expResult, result, 0.0);
}
@Test
public void nameStudentTest() {
System.out.println("StudentTest");
Student instance = new Student("Bill Smith", "c0123456", "male", 89.3);
assertEquals("Bill Smith", instance.getName());
assertEquals("c0123456", instance.getId());
assertEquals("male", instance.getGender());
assertEquals(89.3, instance.getGrade(), 0.0);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
/*每开一个新的student，就会重新跑一次这个方法*/
final Student student = getItem(position);
ViewHolder viewholder;
if (convertView == null) {
/*convertView : 将之前加载好的布局，控件等等进行缓存，以便之后可以重用*/
convertView =
LayoutInflater.from(getContext())
.inflate(resourceId, null); /*加载list的布局*/ /*将一个XML的格式转化成了一个view的我们能用的格式*/
viewholder = new ViewHolder();
viewholder.studentAge = (TextView) convertView.findViewById(R.id.student_age);
viewholder.studentGrade = (TextView) convertView.findViewById(R.id.student_grade);
viewholder.studentName =
(TextView) convertView.findViewById(R.id.student_name); /*这样就只用找一次控件的位置了*/
convertView.setTag(viewholder);
} else {
viewholder = (ViewHolder) convertView.getTag(); /*将上次找到的控件的位置给这次的对象*/
}
viewholder.studentName.setText(student.getName()); /*这里将得到的值给XML让它显示*/
viewholder.studentAge.setText(student.getAge() + ""); /*setView set的是一个字符串，如果要用数就得加""*/
viewholder.studentGrade.setText(student.getGrade() + ""); /*这里通过viewholder来存储，调用XML中的控件*/
convertView.setOnClickListener(
new View.OnClickListener() {
/*这里就代表我正在操作的position，可以直接在这里设置监听器*/
@Override /*一般来说，TextView跳转的界面都是同一个Activity*/
public void onClick(View v) {
String data =
"正在跳转"; /* Toast.makeText(StudentAdapter.this, data , Toast...）这样子用是错的，因为这里的Adapter不是个Activity，他只是个类，没有上下文。*/
Toast.makeText(getContext(), data, Toast.LENGTH_SHORT)
.show(); /*Adapter不是context，getcontext得到的Activity才是context*/
Intent intent =
new Intent(getContext(), Student1.class); /*每一个getContext（）就是一个单独的活动 暂时这么理解*/
intent.putExtra("name", student.getName());
getContext()
.startActivity(
intent); /*这里在使用startActivity的时候必须用getContext来调用，否则编译器不知道你是在哪个上下文启动了intent*/
}
});
return convertView;
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
if ((rowIndex < 0) || (rowIndex >= students.size())) return null;
else {
Student s = this.activeCourse.getStudents().get(rowIndex);
if (columnIndex == IDX_FIRST_NAME) {
return s.getFirstName();
} else if (columnIndex == IDX_LAST_NAME) {
return s.getLastName();
} else if (columnIndex == IDX_STUDENT_NUM) {
return s.getNumber();
} else if (columnIndex == IDX_WEIGHTED_AVG) {
return this.activeCourse.getWeightedAverage(s);
} else if (columnIndex > IDX_WEIGHTED_AVG) {
try {
Double d = s.getGrade(columnIndex - 4);
return d.toString();
} catch (NullPointerException e) {
return " ";
}
} else return " ";
}
}
/**
* Assign the set of students (presumably non-incoming-freshmen, but this is not checked) passed
* to their dorm rooms, in a way that does not take race into account. (compare {@link
* #assignByRace}.) As a precursor (side effect) to this, any students already existing in
* upperclass dorms will be removed.
*/
public void assign(Bag students) {
emptyDorms();
// Purge all freshmen. (We're not assigning those.)
Bag upperclassmen = null;
try {
upperclassmen = (Bag) students.clone();
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
for (int x = upperclassmen.size() - 1; x >= 0; x--) {
Student s = (Student) upperclassmen.get(x);
if (s.getGrade() < 2) {
upperclassmen.remove(s);
}
}
for (int x = 0; x < upperclassmen.size(); x++) {
Student s = (Student) upperclassmen.get(x);
if (s.getGrade() < 2) {
// We're only assigning upperclassmen here.
continue;
}
s.leaveRoom();
for (int y = 0; y < dorms.size(); y++) {
if (s.hasRoom()) {
break;
}
Dorm d = (Dorm) dorms.get(y);
if (d.isFull()) {
continue;
}
if (d.isFemaleOnly() && s.getGender() == Student.Gender.MALE) {
continue;
}
int i = 0;
while (i < d.getNumRooms()) {
if (s.hasRoom()) {
break;
}
try {
d.getRoomByIndex(i).addResident(s);
} catch (IllegalArgumentException e) { // System.out.println(e);
}
i++;
}
}
}
// Error testing to see if there are upperclassmen who don't have a
// room/dorms that aren't full
// int q=0;
for (int x = 0; x < upperclassmen.size(); x++) {
Student s = (Student) upperclassmen.get(x);
if (!s.hasRoom()) {
System.out.println(s + " has no upperclass dorm room!");
}
}
}
