从 Java 中的 array/set 的每个元素中剥离字符

Question

我有一个 HashSet 打印如下：

[Category:Porch of the Cathedral of Palermo, Category:Side views of the Cathedral of Palermo, Category:Church towers of the Cathedral of Palermo, Category:Saint Rosalia by Vincenzo Vitaliano, Category:Piazza del Duomo (Palermo)]

我需要从集合的每个元素中删除 "Category:" 个字符，以生成输出：

[Porch of the Cathedral of Palermo, Side views of the Cathedral of Palermo, Church towers of the Cathedral of Palermo, Saint Rosalia by Vincenzo Vitaliano, Piazza del Duomo (Palermo)]

最简单的方法是什么（Java）？我目前正在使用 HashSet（需要它来确保元素是唯一的）但我可以将它转换为 ArrayList 或任何最适合此任务的东西。

Answer 1

最简单的方法是：将 "Category:" 替换为空字符串。您已经在呼叫 HashSet 的 toString()。

System.out.println(set.toString().replace("Category:", ""));

输出：

Before: [Category:Side views of the Cathedral of Palermo, Category:Porch of the Cathedral of Palermo]
After: [Side views of the Cathedral of Palermo, Porch of the Cathedral of Palermo]

从 Java 中的 array/set 的每个元素中剥离字符

Stripping characters off each element of an array/set in Java

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arrays

string

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