Remove duplicate values from a string in java

Question

Can anyone please let me know how to remove duplicate values from

String s=\"Bangalore-Chennai-NewYork-Bangalore-Chennai\"; 

and output sh

Answer 1

public static String removeDuplicates(String txt, String splitterRegex)
{
    List values = new ArrayList();
    String[] splitted = txt.split(splitterRegex);
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < splitted.length; ++i)
    {
        if (!values.contains(splitted[i]))
        {
            values.add(splitted[i]);
            sb.append('-');
            sb.append(splitted[i]);
        }
    }
    return sb.substring(1);

}

Usage:

String s = "Bangalore-Chennai-NewYork-Bangalore-Chennai";
s = removeDuplicates(s, "\\-");
System.out.println(s);

Prints:

Bangalore-Chennai-NewYork