为什么我写上了hashcode方法还是返回false?
代码
public class Class {
String id;//课程
String name;
public String getId() {
return id;
}
public String getName() {
return name;
}
public void set(String name,String id){
this.id=id;
this.name =name;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof Class))
return false;
Class other = (Class) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
return true;
}
}
