“Java String StringBuilder Supprimer la virgule traînante” Réponses codées

Java String StringBuilder Supprimer la virgule traînante

String[] data = { "First", "Second", "Third" };
StringBuilder sb = new StringBuilder();
for (String item : data) {
  sb.append(item).append(", ");
}
sb.setLength(sb.length() - 2);

// generates output:
// First, Second, Third