* 利用循环,输出字幕包含大写小写,52个 * 输出A-Z a-z * 利用编码表实现,字母和数字的对应关系 * A-Z 65-90 * a-z 97-122 * * 实现步骤: * 1.定义变量,保存小写a,大写A * 2.循环26次,输出定义好的变量, * 每次循环,变量++ */ public class LoopTest_2 { public static void main(String[]...
import java.util.Scanner;public class Test {public static void main(String[] args) {String[] words = new String[] { "a", "c", "u", "b", "e", "p", "f", "z" };System.out.print("old str : ");for (String s : words) {System.out.print(s + " ");}for (...
public static void main(String[] args) { // 乱序的字符 char[] chars = {'a','c','u','b','e','p','f','z'}; // 用Arrays工具类正序排列，也可以用冒泡排序 Arrays.sort(chars); StringBuffer sb = new StringBuffer(new String(chars)); // 顺序反转 ...