题解 | #简单密码#
简单密码
https://www.nowcoder.com/practice/7960b5038a2142a18e27e4c733855dac
import java.util.Scanner;
import java.util.*;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
while (in.hasNext()) { // 注意 while 处理多个 case
String a = in.nextLine();
String a1 = a.replaceAll("a|b|c", "2");
String a2 = a1.replaceAll("d|e|f", "3");
String a3 = a2.replaceAll("g|h|i", "4");
String a4 = a3.replaceAll("j|k|l", "5");
String a5 = a4.replaceAll("m|n|o", "6");
String a6 = a5.replaceAll("p|q|r|s", "7");
String a7 = a6.replaceAll("t|u|v", "8");
String a8 = a7.replaceAll("w|x|y|z", "9");
for (int i = 0; i < a8.length(); i++) {
if (a8.charAt(i) >= 'A' && a8.charAt(i) < 'Z') {
int r = Character.toLowerCase(a8.charAt(i)) + 1;
char rr = (char)r;
a8 = a8.replace(a8.charAt(i), rr);
} else if (a8.charAt(i) == 'Z') {
a8 = a8.replace(a8.charAt(i),'a');
}
}
System.out.println(a8);
}
}
}
