关于集合的有意义的代码 —— (一)

今天的代码主要是对集合中排序功能的体现，集合中排序有客户化排序和自然排序，两种都有体现。

package csdn;

import java.util.Comparator;

public class Student implements Comparable{
	private int id;
	private String name;
	private int score;

	public Student(int id, String name, int score) {
		this.id = id;
		this.name = name;
		this.score = score;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getScore() {
		return score;
	}

	public void setScore(int score) {
		this.score = score;
	}

	@Override
	public String toString() {
		return "Student [id=" + id + ", name=" + name + ", score=" + score + "]";
	}

	@Override
	public int compareTo(Student s) {
		if(this.name.equals("tom") && s.name.equals("tom")){
			return -1;
		}else if (!this.name.equals("tom") && s.name.equals("tom")) {
			return 1;
		}else {
			return this.score - s.score;
		}
	}
}

//class MyComparator implements Comparator {
//
//	public int compare(Student o1, Student o2) {
//		if(o1.getName()=="tom"&&o2.getName()!="tom"){
//			return -1;
//		}else if(o1.getName()!="tom"&&o2.getName()=="tom"){
//			return 1;
//		}else{
//			if(o1.getScore()>o2.getScore()){
//				return -1;
//			}else if(o1.getScore() set = new TreeSet();
		Student s1 = new Student(1, "zmy", 88);
		Student s2 = new Student(2, "mary", 86);
		Student s3 = new Student(3, "tom", 60);
		Student s4 = new Student(4, "lil", 59);
		Student s5 = new Student(5, "lily", 95);
		Student s6 = new Student(6, "tom", 70);
		
		set.add(s1);
		set.add(s2);
		set.add(s3);
		set.add(s4);
		set.add(s5);
		set.add(s6);
		
		Iterator it = set.iterator();
		while (it.hasNext()) {
			Student student = (Student) it.next();
			System.out.println(student);
			
		}
	}
}