New java Methods in the Tools

in comment you write about Integer, Long types but you use int, long - it is not the same types. for repeat() is better to use StringBuilder. btw there is "-".repeat(20) in Java 11

zemiak The randomOfAny method works only with non primitive data types. Long works long don't works. And so on... If you mean any other please write Details. Thanks. Please take a look at my version of 'manualy' string sort. https://code.sololearn.com/c2blLNdBrS5L/?ref=app What do you think of the code? Regards kiuziu

Manuel Prochnow, thanks to tip, .toCharArray() is good classic way, I tried optimise your example and I got bubble sort

zemiak String.valueOf(char[]) Nice too! Do you know 'pojo java' ? I think it's mean 'poor java' ... is'nt it? This used only 'basic' java without imports I mean. What do yout know? Regards kiuziu

I know only POJO object, it is term usually used in java EE Plain Old Java Object (POJO) . is an ordinary Java object (class) what is not POJO . if bound by special restriction .. if follow of the major Java object models, conventions, or frameworks . if requiring class path .. if extend prespecified classes, interfaces, annotations .. if need complicated object frameworks what is still POJO: if it accepts these requests: . is serializable, . has a no-argument constructor . uses getter and setter methods, equals(), hashCode() . follow a simple naming convention of get/set methods.

Ok. Thanks for the details. 👍😊

> "If you mean any other please write Details. " I mean these places: Long -> long * PARAMETER a Long type number. public static boolean isPrime(long number){ -- * PARMETER an Long value. public static ArrayList<Long> pfz(long number){ -- Integer -> int * PARMETER 2 or more Integers or an Array of Integers * RETURN the GCD as an Integer public static int gcd(int... n){ int a .. return a;