BaşlayınÜcretsiz Başlayın

Using Collections and Arrays

In this exercise, you will see how the Collections Framework supporting classes of Collections and Arrays can help you manipulate and work with data more easily.

Bu egzersiz

Data Types and Exceptions in Java

kursunun bir parçasıdır
Kursu Görüntüle

Egzersiz talimatları

  • Add "Lima", "Bogota", "Santiago" to the capitals ArrayList.
  • Convert the array in the euCapitals variable to a List.
  • Sort capitals alphabetically.
  • Reverse the order of capitals

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

public class AllTheCities {

	public static void main(String[] args) {
		String[] euCapitals = {"Paris", "London", "Prague"};
		ArrayList capitals = new ArrayList();
        
        // Add cities to capitals all at once
		Collections.____(____, "Lima", "Bogota", "Santiago");
        // Convert euCapitals to List
        ____<____> euCapitalsList = Arrays.____(euCapitals);
        // Sort capitals
        ____.____(capitals);
        // Reverse capitals
        Collections.____(____);
        
		System.out.println(capitals);
		System.out.println(euCapitalsList);
		System.out.println(euCapitals);
	}
}
Kodu Düzenle ve Çalıştır