Pergunta de entrevista da empresa Areteans
Write a program to find the duplicate number in an array.
Resposta da entrevista
Sigiloso
26 de fev. de 2019
import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Scanner; class JavaApplication1 { public static void main(String args[]) { String[] strArr={"abc","def","mno","def","abc"}; HashSet hs=new HashSet(); for(String ae:strArr){ if(!hs.add(ae)){ System.out.println("Duplicate element = "+ae); } } } }