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Java Programming Exercises with Solutions - Practice Online
TīmeklisRemove Duplicates from a List Using Plain Java. Removing the duplicate elements from a List with the standard Java Collections Framework is done easily through a Set: import java.util.ArrayList ; import java.util.Arrays ; import java.util.HashSet ; import java.util.List ; /** * Remove Duplicates from a List Using Java * @author Ramesh Fadatare ... Tīmeklis2016. gada 24. aug. · In quiz class I have to add questions to a arrayList and display them. In question class u have to set a question and its 4 options. here i am getting null pointer exception while compilation. You would write your questions to an ArrayList and display them in second method in quiz class. In menu if you choose 1 you get add … fish eugenol
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