equals和hasCode疑惑
代码如下:
package test;

import java.util.*;

final class student {
String name;

int age;

public student(String name, int age) {
this.name = name;
this.age = age;
}

public boolean equals(Object o) {
if (o == this)
return true;
if (!(o instanceof student))
return false;
student s = (student) o;
if (s.name == name && s.age == age)
return true;
else
return false;
}

public int hasCode() {
return name.hashCode() + age;
}

}

public class test1 {
public static void main(String args[]) {
Map map = new HashMap();
student s1 = new student( "lwb ", 26);
student s2 = new student( "lwb ", 26);
map.put(s1, "s1 ");
System.out.println(map.get(s2));
}

}

已经重写了equals和hasCode，为什么运行结果为null呢？


[解决办法]
public int hashCode();
不是hasCode()