trim.() method does not work(java)

Question

So i'm trying to count the characters in a String without the spaces. But somehow my trim() method doesn't cut the spaces:

class Test {

HashMap<Character, Integer> testMap = new HashMap<>();

public void encode(String text) {
    String code = text.trim();
    for (int i = 0; i < code.length(); i++) {
        Character key = code.charAt(i);
        if (testMap.containsKey(key)) {
            testMap.put(key, testMap.get(key) + 1);
        } else {
            testMap.put(key, 1);
        }

    }
    System.out.println(testMap);
    System.out.println(code);
}

Main method:

public class MyMain {

public static void main(String[] args) {
    Test test = new Test();
    test.encode("Tessstttt faill");

}

}

So the output is:

{ =1, a=1, s=3, T=1, t=4, e=1, f=1, i=1, l=2}
Tessstttt faill

Where is my mistake. Thanks a lot ahead!! (I'm not that experienced yet, so sorry in case of obvious mistake)

Answer 1

Trim won't remove all whitespace, only the leading and trailing. To remove all whitespace, you want something like this:

text.replaceAll("\\s","")

Answer 2

You misunderstood trim() it

Returns a copy of the string, with leading and trailing whitespace omitted.

Use replace() instead to remove all the spaces

text.replace(" ","");