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845天前//测试类 |
public class StudentDemo { |
public static void main(String[] args) { |
Student s1 = new Student("000","张三",18); |
Student s2 = new Student("000","张三",18);//随便改 |
boolean flag = s1.equals(s2); |
System.out.println(flag); |
} |
} |
//实现类Student |
public class Student { |
//私有成员 |
private String id; |
private String name; |
private int age; |
//带参构造函数 |
public Student(String id, String name, int age) { |
super(); |
this.id = id; |
this.name = name; |
this.age = age; |
} |
//无参构造函数 |
public Student() { |
super(); |
// TODO Auto-generated constructor stub |
} |
public String getId() { |
return id; |
} |
public void setId(String id) { |
this.id = id; |
} |
public String getName() { |
return name; |
} |
public void setName(String name) { |
this.name = name; |
} |
public int getAge() { |
return age; |
} |
public void setAge(int age) { |
this.age = age; |
} |
@Override |
public String toString() { |
return "Student [id=" + id + ", name=" + name + ", age=" + age + "]"; |
} |
public boolean equals(Object obj) { |
if (this == obj) |
return true; |
if (obj == null) |
return false; |
if (getClass() != obj.getClass()) |
return false; |
Student s = (Student) obj; |
if (id != s.id) |
return false; |
if (age != s.age) |
return false; |
if (name == null) { |
if (s.name != null) |
return false; |
} else if (!name.equals(s.name)) |
return false; |
return true; |
} |
} |
