本文转自: kingzone_2008的博客 1 String String:字符串常量,字符串长度不可变。Java中String是immutable(不可变)的。 String类包含如下定义: /** The value is used for character storage. */ private final char value[]; /** The offset i
题目 import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);char[] c = sc.nextLine().toCharArray();StringBuffer s = new StringBuffer()