Create a class with static method and use java API with imports using jshell

jshell-3

jshell> public class Sample {
   ...> public static void join() {
   ...> StringBuilder sb = new StringBuilder();
   ...> sb.append("Smart").append(" ").append("Techie");
   ...> System.out.println("The string is " + sb.toString());
   ...> }
   ...> }
|  created class Sample

jshell> Sample.join();
The string is Smart Techie

jshell>