关于java：打印出数组列表中的所有对象

Printing out all the objects in array list

本问题已经有最佳答案，请猛点这里访问。

Possible Duplicate:
How to print object content in correct way?

号

我需要能够打印出数组列表中的学生对象(所有变量)。这有可能吗？当我尝试打印时，它会输出这种东西，例如student.Student@82701e。我想是hexadecimal之类的

这是我的代码：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130

package student;

public class Student {

private String studentName;
private String studentNo;
private String email;
private int year;

public Student() {
this.studentName = null;
this.studentNo = null;
this.email = null;
this.year = -1;
}

public Student(String nName, String nNum, String nEmail, int nYr) {
this.studentName = nName;
this.studentNo = nNum;
this.email = nEmail;
this.year = nYr;
}

public void setStudentName(String newStudentName) {
this.studentName = newStudentName;
}

public void setStudentNo(String newStudentNo) {
this.studentNo = newStudentNo;
}

public void setEmail(String newEmail) {
this.email = newEmail;
}

public void setYear(int newYear) {
this.year = newYear;
}

public String getStudentName() {
return studentName;
}

public String getStudentNo() {
return studentNo;
}

public String getEmail() {
return email;
}

public int getYear() {
return year;
}
}

package student;

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class studentTest {

public static void main(String[] args) {
Scanner input = new Scanner(System.in);

List<Student> Students = new ArrayList();

Student student1 = new Student();

student1.setStudentName("Bob Marley");
student1.setStudentNo("N0002");
student1.setEmail("[email protected]");
student1.setYear(2);

Students.add(student1);

Student student2 = new Student();

student2.setStudentName("Bill Harvey");
student2.setStudentNo("N0003");
student2.setEmail("[email protected]");
student2.setYear(2);

Students.add(student2);

Student student3 = new Student();

student3.setStudentName("John Beans");
student3.setStudentNo("N0004");
student3.setEmail("[email protected]");
student3.setYear(2);

Students.add(student3);

System.out.println("Add new students:");
System.out.println("Enter number of students to add:");
int countStudents = input.nextInt();

for (int i = 0; i < countStudents; i++) {
Student newStudents = new Student();

System.out.println("Enter details for student:" + (i + 1));

System.out.println("Enter name:");
newStudents.setStudentName(input.next());

System.out.println("Enter Number:");
newStudents.setStudentNo(input.next());System.out.println("Search by student number:");

System.out.println("Enter email:");
newStudents.setEmail(input.next());

System.out.println("Enter year:");
newStudents.setYear(input.nextInt());
Students.add(newStudents);
}

}
}