public class Person {
private String name;
private int age;
public Person() {
}
public Person(String name, int age) {
  this.name = name;
  this.age = age;
}
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;
}

public boolean equals(Object obj) {
  if (this == obj) {
   return true;
  }
  if (!(obj instanceof Person)) {
   return false;
  }
  Person p = (Person) obj;
   return this.name.equals(p.name) && this.age == p.age;
}
这是一个person类我重写了equals方法了大事还是保证不了唯一性啊。

{:soso_e143:}