New java Methods in the Tools

Question

In this discussion you will find helpful Java methods.
If you want, please add some nice methods.

the link to kiuziu's tools:

https://code.sololearn.com/c5rREujmvxsU/#java

be happy be using this ...

regards kiuziu

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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

Answer 5

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.

Answer 6

Ok. Thanks for the details. 👍😊

Answer 7

> "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;