import java.util.*;

 public class a {
     public static void main(String [] args) {
         String [] toSort = {"aaa:10:1:1",
                             "ccc:30:3:4",
                             "bbb:50:4:5",
                             "ddd:20:5:3",
                             "eee:40:2:20"};

         System.out.println("Before sort:");
         for (String str: toSort)
                     System.out.println(str);

         Arrays.sort(toSort);

         System.out.println("After sort:");
         for( String str : toSort)
             System.out.println(str);


         int [] tmp = new int [toSort.length];

         for (int i=0; i<toSort.length;i++)
             tmp[i]=toSort[i].split(":");
         Arrays.sort(tmp);

         for(i=0;i<tmp.length;i++)
         for(j=0; j<toSort.length; j++)
             if()
                 System.out.println(toSort(j));

     }



 }