Removing whitespace from strings in Java

Question

I have a string like this:

mysz = \"name=john age=13 year=2001\";

I want to remove the whitespaces in the string. I tried trim()

Answer 1

private String generateAttachName(String fileName, String searchOn, String char1) {
    return fileName.replaceAll(searchOn, char1);
}


String fileName= generateAttachName("Hello My Mom","\\s","");