Arrays.sort() and some arrays.

[Jhedzkie Skies]

hello. i am in a need of an idea on how to do this sort of a method...


i have here an int [] with 10 as length...

so its like...

 int [] values = {2,3,7,9,4,7,5,3,9,1};   

this values are to be put on a separate set of int variables

 int v1,v2,v3,v4,v5,v6,v7,v8,v9,v10;

//and to assign

v1=values[0];
.
.
.
v10=values[9];  

//then i want to use Arrays.sort() to sort values up..

Arrays.sort(values);

 

i wanted to come up when i sorted it to this output...

v10 = 1
v1=2
v2=3
v8=3
v5=4
v7=5
v3=7
v6=7
v4=9
v9=9

i want if i sort out the values of the values[], it will be sorted but the variable they are originally assigned on will follow the sequence of the sorted values...

any ideas to do this?
i am lacking out of ideas that's why i asked help here.
hoping somebody could lend me a hand.

thanks in advance.

[Ireneusz Kordal]

You could create a wrapper class for your variable-name / value pair like this:

 
class IntWrapper{
    String name;
    Integer value;
    IntWrapper(String name, int value){
        this.name = name;
        this.value = new Integer(value);
    }
    .....
   public int hashCode(){
      return value.hashCode();
   }

   public int compareTo(Integer i){
      return value.compareTo(i);
   }
    }   

provide hashCode() and compareTo() methods based on Integer values, then create an ArrayList of these wrapper objects
and sort this ArrayList with Collections.sort method. Finally, iterate trough the array and print name / value pairs.
You could also create an array of these objects and sort it with Arrays.sort.

[Jhedzkie Skies]

thanks Ireneusz... i'll try to study hashes.

it is something new for me...

[pete stein]

Ireneusz Kordal wrote:You could create a wrapper class for your variable-name / value pair like this:

 
class IntWrapper{
    String name;
    Integer value;
    IntWrapper(String name, int value){
        this.name = name;
        this.value = new Integer(value);
    }
    .....
   public int hashCode(){
      return value.hashCode();
   }

   public int compareTo(Integer i){
      return value.compareTo(i);
   }
    }   

I think that you'll also want to make this wrapper class implement Comparable<IntWrapper>