[抄题]: Given a string S, we can transform every letter individually to be lowercase or uppercase to create another string. Return a list of all possible strings we could create. Examples: Input: S = "a1b2" Output: ["a1b2", "a1B2&q…
总结:从键盘输入多少次,就用for循环控制.这些需要输入的数据都放在循环内部,否则不会执行多次. package com.aaa; import java.util.Scanner; //大小写字母的转换 //主要对于函数的不熟悉呀.转换小/大写---toLowercase()/toUpperCase() public class ftwert { public static void main(String[] args) { Scanner c = new Scanner(System.in…