treesettest.java

本压缩文件中含有线程的控制

package connections;

import java.util.*;

public class TreeSetTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		TreeSet<Person> ts  = new TreeSet<Person>(new Person.PersonComparator());
		
		ts.add(new Person(1,"one"));
		ts.add(new Person(2,"two"));
		ts.add(new Person(2,"three"));
		ts.add(new Person(4,"four"));
		
		Iterator<Person> it = ts.iterator();
		
		while(it.hasNext()){
			System.out.println(it.next());
		}

	}

}



class Person {
	private int num;
	private String name;
	
	public Person(int id, String name){
		num = id;
		this.name = name; 
	}
	
	public String toString(){
		return num + ": " + name;
	}

	public int getNum() {
		return num;
	}

	public void setNum(int num) {
		this.num = num;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	static class PersonComparator implements Comparator<Person>{
		public int compare(Person o1, Person o2){
			int result;
			result = (o1.getNum()> o2.getNum()) ? 1 : (o1.getNum() == o2.getNum() ? 0 : -1);
			
			if (result == 0){
				result = o1.getName().compareTo(o2.getName());
			}
			return result;
		}
		
	}
	
	
	

	
//	public int compareTo(Person o){		
//		int result;
//		result = (num> o.num) ? 1 : (num == o.num ? 0 : -1);
//		if (result == 0){
//			result = name.compareTo(o.name);
//		}
//		return result;
//		
//	}
}