I’m not sure if i understood you well but try following code:
public class Main {
public static void main(String[] argv) {
String input = "gudmor,ningeveryone,Have a great day,thankssssssssssss";
String[] firstSplit = input.split(",");
List<String> result = new ArrayList<>();
String[] tmpArray;
for (String elem : firstSplit) {
if (elem.length() <= 10) {
result.add(elem);
} else {
for(int i = 0;i < elem.length()/10;i++) {
result.add(elem.substring(i*10,(i+1)*10));
}
if(elem.length() % 10 != 0) {
result.add(elem.substring(elem.length() - (elem.length() % 10)));
}
}
}
}
}
solved Need some help in Java String