Searching for a record in a TreeSet on the fly

Question

I\'m writing a contact book application in Java using the swing and awt libraries. The Application consists of a JList which uses a TreeSet as an abstractListModel.

Answer 1

You can use boolean startsWith(String prefix) method of java.lang.String class to check if which values in the set starts with the input string.

Ex :

public void getName(Set t, String s)
    {
        for(String str : t) 
        {
            if(str.toLowerCase().startsWith(s.toLowerCase()))
                System.out.println(str);
        }
    }

input :

Set test = new TreeSet();

        test.add( "Erich" );
        test.add( "Erica" );
        test.add( "Erin" );
        test.add( "Dave" );
        test.add( "Thomas" );

if you call the method :

getName(test, "eri");

output will be :

Erica
Erich
Erin