1. String getOrderedString(boolean isDuplicated, String - str) 说明: Orders all characters in the input strings and return the ordered string.(note: only considering the alphabets and digits) i.e: (false, {"ahcdx", "abcuy", "cejm&q…
String的用法很活跃,也用到的很多.可以根据自己的需要查询API.这里只有concat和substring,indexof的用法 class TestString { public static void main(String[] args) { String s = new String("12cx;x"); String a = "cxx"; System.out.println(s); System.out.println(a); System.out.…