How Can I Sort Alphabetically?

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OK basically i have a members club full of members and when i want to get all their names back
i use this code but what i really want to do is get them all back alphabetically, and i cant use the help of a java lib i have to use my own sort method. And before any one sends me links to java docs i have already tried but cannot figure it out.

Java

/**
 * List names.
 */
public void listNames() {
    for (int i = 0; i < members.size(); i++) {
        Member member = members.get(i);
        member.getName();
        StdOut.println(i + ":" + member.getName());
    }
}
          }

Posted 24-Apr-14 1:42am

paul power

Updated 25-Apr-14 1:10am

v6

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Comments

[no name] 24-Apr-14 7:48am

Okay so what is stopping you from reading the documentation for the ArrayList class?

paul power 24-Apr-14 7:54am

I have tried every thing to sort this out but i don't now what way to go about it

BupeChombaDerrick 25-Apr-14 13:03pm

You can try heapsort, check my updated solution :)

2 solutions

Solution 1

You should be able to adopt the code when you copy it for the homework.

Your teacher can see if it's your code or another ones.

Please check the API:
http://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html#toArray()[^]

Posted 24-Apr-14 2:23am

TorstenH.

Comments

paul power 24-Apr-14 11:09am

Still stuck on this can any one even help with the first few lines

TorstenH. 25-Apr-14 6:42am

What is the problem? Please ask specific and use "improve question" for it.

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

BupeChombaDerrick · Accepted Answer · 2014-04-24T10:58:00

Try this

Java

public static void sortStringExchange( String  x [ ] ){
 
             Arrays.sort(x, new Comparator<string>() {
 
                @Override
                public int compare(String s1, String s2) {
 
                return s1.compareTo(s2);
 
           }
});
}

Well try heapsort http://en.wikipedia.org/wiki/Heapsort[^] http://codereview.stackexchange.com/questions/32606/implementation-of-heap-sort[^]

Hope this helps :)

BCD

How Can I Sort Alphabetically?

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How Can I Sort Alphabetically?

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