If you want to use split, you need to escape the dot (split expects a regular expression).

List<String> strings = Arrays.asList(myString.split("\\."));

If you only need to remove the last part, you can use replaceAll and a regex:

myString = myString.replaceAll("\\.[^.]*$", "");

Explanation:

• \\. looks for a dot
• [^.]* looks for 0 or more non dot characters
• $ is the end of the string

Save the array in a local variable and use the array's length field to find its length. Subtract one to account for it being 0-based:

String[] bits = one.split("-");
String lastOne = bits[bits.length-1];

Caveat emptor: if the original string is composed of only the separator, for example "-" or "---", bits.length will be 0 and this will throw an ArrayIndexOutOfBoundsException. Example: https://onlinegdb.com/r1M-TJkZ8

You can solve this with regex (given you only need a group of word characters between the last "/" and "."):

    String str="core/pages/viewemployee.jsff";
    str=str.replaceFirst(".*/(\\w+).*","$1");
    System.out.println(str); //prints viewemployee

You only need to split it once, and take the last element.

String sentence = "Any simpler way to get the last element of a Java array?";
String[] tokens = sentence.split(" ");
String lastToken = tokens[tokens.length-1];

It's awkward, but there's really no other way to do it unless you have foreknowledge of the length of the string.

Try this code it should work:

static HashMap < String, String > newList = new HashMap < > (); 
public static void main(String[] args) throws FileNotFoundException, IOException {

    String inputFile = "input";
    BufferedReader brInput = new BufferedReader(new FileReader(inputFile));
    String line = null;

    while ((line = brInput.readLine()) != null) {

        newList.put(line, "x");
    }

    for (Map.Entry < String, String > entry: newList.entrySet()) {

        String getAfterDot = entry.getKey();
        if (getAfterDot.contains(".")) {
            String[] split = getAfterDot.split("\\.");
            String beforeDot = "";
            beforeDot = getAfterDot.substring(0, getAfterDot.lastIndexOf("."));
            System.out.println(beforeDot);
        }
    }

}

I got this output with above code:

0
0
2
0.3.5
0.2

You want to catch only the last part of your string ? Try this :

string[] s_tab = myStringHere.split(".");
string result = s_tab[s_tab.length - 1];

If you want it in one line :

string result = myStringHere.split(".")[StringUtils.countMatches(myStringHere, ".")];

Try this,

String fileName = "MyFile.xls";     
int dotIndex = fileName.lastIndexOf(".");
String name = fileName.substring(0, dotIndex); // MyFile
String extension = fileName.substring(dotIndex); // .xls
// then you can change and re-construct the file name

I think you can use lastIndexOf(String str) method for this purpose.

String str = "test.test.test....test";

int pos = str.lastIndexOf("test");

String result = str.substring(pos);