关于java泛型类使用实例 - 黑马程序员技术交流社区

package 集合类测试;
import java.util.*;
/**
*
* @author Any
*/
public class Main {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
Student []stu={ new Student("黑马--冯华亮",10),new Student("黑马-周鹏飞",27),new Student("黑马-何完县",21) };
ArrayList<Student> list=new ArrayList<Student>();
for(int i=0;i<stu.length;i++)
{
list.add(stu[i]);
}
Collections.sort(list);
int number=list.size();
for(int i=0;i<number;i++)
{
Student stu1=list.get(i);
System.out.println("该组学生的信息如下：\n"+stu1.getName()+"-----"+stu1.getID());
}
}
}
class Student implements Comparable<Student> {
private String name;
private int ID;
public Student() {
}
public Student(String name, int ID) {
this.name = name;
this.ID = ID;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the ID
*/
public int getID() {
return ID;
}
/**
* @param ID the ID to set
*/
public void setID(int ID) {
this.ID = ID;
}
public int compareTo(Student stu) {
//throw new UnsupportedOperationException("Not supported yet.");
if(ID>stu.ID) return 1;
if(ID==stu.ID) return 0;
else return -1;
}
}

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