import java.util.*; //导入Java包中的类
public class Main{
public static void main(String[] args) {
class NameComparator implements Comparator<PersonSortable2>{
public int compare(PersonSortable2 n1, PersonSortable2 n2) {
return n1.getName().compareTo(n2.getName());
}
}
class AgeComparator implements Comparator<PersonSortable2>{
public int compare(PersonSortable2 a1, PersonSortable2 a2) {
return a1.getAge()-a2.getAge();//这里不能使用compareTo方法
}
}
Scanner sc = new Scanner(System.in);
int n = sc.nextInt(); //对象数组
PersonSortable2 t[] = new PersonSortable2 [n];
for(int i = 0;i < n;i++) //i从0开始递增
{
String a = sc.next(); //一次性读取一行
int b = sc.nextInt(); //一次性读取一行
PersonSortable2 person = new PersonSortable2(a, b);
t[i] = person;
} //按照姓名排序
System.out.println("NameComparator:sort");
Arrays.sort(t, new NameComparator()) ;
for(PersonSortable2 i:t) {
System.out.println(i);
} //按照年龄排序
System.out.println("AgeComparator:sort");
Arrays.sort(t, new AgeComparator());
for(PersonSortable2 i : t){
System.out.println(i);
} //输出接口的类型
System.out.println(Arrays.toString(NameComparator.class.getInterfaces()));
System.out.println(Arrays.toString(AgeComparator.class.getInterfaces()));
sc.close();
}
}
class PersonSortable2 {
private String name; //字符串name私有化
private int age; //整型age私有化
public PersonSortable2(String name, int age) {
super();
this.name = name; //调用name
this.age = age; //调用age
}
@Override //重写
public String toString() {
return name+"-"+age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name; //调用name
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age; //调用age
}
}
