//=================================================

// File Name       :	Array_demo

//------------------------------------------------------------------------------

// Author          :	Common

// 类名：student_

// 属性：

// 方法：

class student_ implements Comparable<student_>{

	private String name;

	private int age;

	private float score;

	public student_(String name, int age, float score) {

		super();

		this.name = name;

		this.age = age;

		this.score = score;

	}

	@Override

	public String toString() {

		return "Student [name=" + name + ", age=" + age + ", score=" + score + "]";

	}

	public int compareTo(student_ stu){		//覆写compareTo()方法，实现排序规则的应用

		if(this.score>stu.score){

			return -1;

		}else if(this.score<stu.score){

			return 1;

		}else{

			if(this.age>stu.age){

				return 1;

			}else if(this.age<stu.age){

				return -1;

			}else{

				return 0;

			}

		}

	}

}

//主类

//Function        : 	Comparable_demo

public class Comparable_demo {

	public static void main(String[] args) {

		// TODO 自动生成的方法存根

		student_ stu[] = {new student_("张三",20,90.0f),new student_("李四",22,90.0f),

				new student_("王五",20,99.0f),new student_("赵六",20,70.0f),

				new student_("孙七",22,100.0f)};

		java.util.Arrays.sort(stu);

		for(int i=0;i<stu.length;i++){

			System.out.println(stu[i]);

		}

	}

}