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1 package examples;
2
3 import java.util.Collections  ;
4 import java.util.Iterator ;
5 import java.util.LinkedHashSet ;
6 import java.util.Set ;
7
8
9
12 public class Student extends Person
13 {
14 protected String school;
15 protected Set courses = new LinkedHashSet ();
16
17 public void setSchool(String school)
18 {
19 this.school = school;
20 }
21
22 public String getSchool()
23 {
24 return this.school;
25 }
26
27 public void addCourse(Course course)
28 {
29 courses.add(course);
30 }
31
32 public void removeCourse(Course course)
33 {
34 courses.remove(course);
35 }
36
37 public Set getCourses()
38 {
39 return Collections.unmodifiableSet(courses);
40 }
41
42 public String toString()
43 {
44 StringBuffer buf = new StringBuffer ();
45 buf.append("{Name = " +name).append(", School = " +school);
46 if (address != null)
47 buf.append(", Address = " + address.getSimpleAddress());
48 buf.append("}\n");
49 buf.append("Courses:\n");
50 for (Iterator iter = getCourses().iterator(); iter.hasNext(); )
51 buf.append(iter.next());
52
53 return buf.toString();
54 }
55
56 }
57 |
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Java API By Example, From Geeks To Geeks.