alphabetizing , plz help

i'm trying to add a little order to my list box by alphabetizing the array list it gets the string from
the only problem is i keep running in to dead ends ><

can some 1 plz help

here's the class that sits in the array list

Code :

---

class Item {
	String name;
	int count;
	public Item (String name,int count){
		this.name= name;
		this.count= count;
	}
}

---

all i need is a sort method for an array list that will hold lots of them

So lets say all items in the list are strings, this is what we do.

Code :

---

        final List<String> letters = Arrays.asList(new String[] { "f", "g", "e", "o", "a", "y", "r" });
        Collections.sort(letters);
 
        for (final String letter : letters) {
            System.out.println(letter);
        }

---

That will sort your list using natural order and since String implements Comparable this should work just fine :)

Enjoy the buckets!

// Json

useing that , would i be able to change what items go where in the list while the string being read is inside of the items?
cause really thats what i need

You could create your own comparator and do it.

What are your sorting rules?

// Json

ok , u lost me there ><

idk what u mean by sorting rules , i mean isnt alphabetizing only done in 1 way anyways ?

Well, using Collections.sort passing in a list of Strings it will automatically sort them alphabetically because thats how strings are sorted naturally just like ints would be 0,1,2,3,4 etc.

What I'm wondering is what more you wish to do when sorting this.

// Json

how it sorts would be perfect
the only problem is with the fact my strings are in a object in the list
( to get 1 of the strings i use something like list.get(1).string )

Implement comparable (or comparator, I forget which one Collections.sort uses), then simply call the comparable portion of the string class:

Code :

---

class Item implements Comparable<Item>
{
// Comparable example, I believe Comparator is very similar
// your Item code is above, I was just too lazy to copy/paste
 
     // CompareTo method from Comparable
     public int compareTo(Item other)
     {
          return this.name.compareTo(other.name);
     }
}

---

not sure how that would have worked
but i found a round about way to use the
collections .sort();
i copyed all the strings to an array then sorted that ,
after that i checked where the sorted string was and added
the object that contained that string to a new array witch then
overwrote the original one

What helloworld means is that you can have your object that has the string in it implement Comparable. After that all you need to do is Collections.sort(listOfObjectsHere) and it will automatically sort using the compareTo method you implemented which in turn just calls the compareTo method on the String itself and off we go.

// Json

ah , ok
i'll have to try that next time