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快速提问,indexof()找到字符串字符的第一个出现位置?最后出现的字符串字符呢?
谢谢
毫不夸张的说:
.lastIndexOf()
As an exercise, I am creating a list of Books as a LinkedList and using the Comparator interface to sort them by author or title. First, I create a class of books and ensure that it will print to screen the way I want it