sof question : http://stackoverflow.com/posts/37012374

SOF.java

package com.rizze.test.labs.sof;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.junit.Test;

public class SOF {

	
	public static class Link{
		public String name;
		public int id;
		
		public static Link build(String n, int i){
			Link l = new Link();
			l.name = n;
			l.id=i;
			return l;
		}
		
		public String toString(){
			return String.format("[%s , %d]", name,id);
		}
		
	}
	
	
	
	
	
	
	@Test
	public void test() {
		
		List<Link> links = new ArrayList<Link>();
		
		//SSETUP [[A, 1], [C, 2], [D, 1], [D, 2]]
		links.add(Link.build("D", 1));
		links.add(Link.build("A", 1));
		links.add(Link.build("D", 2));
		links.add(Link.build("C", 2));
		
		System.out.println("Before : "+ links);
		Collections.sort(links, new Comparator<Link>(){

			@Override
			public int compare(Link p1, Link p2) {
				int ret = p1.name.compareTo(p2.name);
				if(ret == 0){
					ret= p1.id - p2.id;
				}
				return ret;				
			}
			
		});
		System.out.println("Sorted: "+ links);
		
	}

}

console output :
Before : [[D , 1], [A , 1], [D , 2], [C , 2]]
Sorted: [[A , 1], [C , 2], [D , 1], [D , 2]]