java：有效地将字符串列表

public static String join join（CharSequence DeLimiter，itoser elements> elements> elements> elements） 示例，with string.join（）

list strint> strint

Collectors.joining() for Non-String Elements

For collections of non-String elements, you can leverage the Collectors.joining() method in conjunction with the stream API:

public static String join(CharSequence delimiter, Iterable extends CharSequence> elements)

公共类String Joiner { String Joiner（CharSequence定界符） }