[编程题]简单密码
- 热度指数：316442 时间限制：C/C++ 1秒，其他语言2秒 空间限制：C/C++ 32M，其他语言64M
- 算法知识视频讲解
输入描述:
在一行上输入一个长度为
的字符串
，代表给定的密码。
输出描述:
示例1
输入
NowCoder123
输出
o69d6337123
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.hasNextLine()) { // 注意 while 处理多个 case
//输入
String str = in.nextLine();
//为空或者超长则退出
if (str.isEmpty() || str.length() > 100 ) {
break;
}
StringBuilder result = new StringBuilder();
for (char c : str.toCharArray()) {
//处理小写字母
if (Character.isLowerCase(c)) {
//如果c在字符串中存在，则进入if
if ("abc".indexOf(c) != -1) {
result.append("2");
}
if ("def".indexOf(c) != -1) {
result.append("3");
}
if ("ghi".indexOf(c) != -1) {
result.append("4");
}
if ("jkl".indexOf(c) != -1) {
result.append("5");
}
if ("mno".indexOf(c) != -1) {
result.append("6");
}
if ("pqrs".indexOf(c) != -1) {
result.append("7");
}
if ("tuv".indexOf(c) != -1) {
result.append(8);
}
if ("wxyz".indexOf(c) != -1) {
result.append(9);
}
}
//处理大写字母
if (Character.isUpperCase(c)) {
if (c == 'Z') {
//对Z进行特殊处理
result.append("a");
} else {
//不是Z的话，将字符转为小写，并且char+1得到下一位小写字母，加入到结果中
char temp = Character.toLowerCase(c) ;
char[] s = Character.toChars(temp + 1);
result.append(s);
}
}
//处理数字
if (Character.isDigit(c)) {
result.append(c);
}
}
System.out.println(result);
}
//
in.close();
}
}
发表于 2025-06-23 13:48:29
回复(0)
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
String target = in.nextLine();
char[] ch = target.toCharArray();
char[] ch1 = new char[ch.length];
for (int i = 0 ; i < ch.length; i++) {
if (Character.isLowerCase(ch[i])) {
if (ch[i] == 'a' || ch[i] == 'b' || ch[i] == 'c') {
ch1[i] = '2';
} else if (ch[i] == 'd' || ch[i] == 'e' || ch[i] == 'f') {
ch1[i] = '3';
} else if (ch[i] == 'g' || ch[i] == 'h' || ch[i] == 'i') {
ch1[i] = '4';
} else if (ch[i] == 'j' || ch[i] == 'k' || ch[i] == 'l') {
ch1[i] = '5';
} else if (ch[i] == 'm' || ch[i] == 'n' || ch[i] == 'o') {
ch1[i] = '6';
} else if (ch[i] == 'p' || ch[i] == 'q' || ch[i] == 'r' || ch[i] == 's') {
ch1[i] = '7';
} else if (ch[i] == 't' || ch[i] == 'u' || ch[i] == 'v') {
ch1[i] = '8';
} else if (ch[i] == 'w' || ch[i] == 'x' || ch[i] == 'y' || ch[i] == 'z') {
ch1[i] = '9';
}
} else if (Character.isUpperCase(ch[i])) {
ch1[i] = Character.toLowerCase(ch[i]);
if (ch1[i] == 'z') {
ch1[i] = 'a';
} else {
ch1[i] = (char)(ch1[i] + 1);
}
} else if (Character.isDigit(ch[i])) {
ch1[i] = ch[i];
}
}
String result = String.valueOf(ch1);
System.out.println(result);
}
}
发表于 2025-05-18 15:41:07
回复(0)
import java.util.Scanner;
// 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
String s = in.nextLine();
StringBuilder str = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
if (String.valueOf(s.charAt(i)).equals("a") ||
String.valueOf(s.charAt(i)).equals("b") ||
String.valueOf(s.charAt(i)).equals("c")) {
str.append(2);
} else if (String.valueOf(s.charAt(i)).equals("d") ||
String.valueOf(s.charAt(i)).equals("e") ||
String.valueOf(s.charAt(i)).equals("f")) {
str.append(3);
} else if (String.valueOf(s.charAt(i)).equals("g") ||
String.valueOf(s.charAt(i)).equals("h") ||
String.valueOf(s.charAt(i)).equals("i")) {
str.append(4);
} else if (String.valueOf(s.charAt(i)).equals("j") ||
String.valueOf(s.charAt(i)).equals("k") ||
String.valueOf(s.charAt(i)).equals("l")) {
str.append(5);
} else if (String.valueOf(s.charAt(i)).equals("m") ||
String.valueOf(s.charAt(i)).equals("n") ||
String.valueOf(s.charAt(i)).equals("o")) {
str.append(6);
} else if (String.valueOf(s.charAt(i)).equals("p") ||
String.valueOf(s.charAt(i)).equals("q") ||
String.valueOf(s.charAt(i)).equals("r") ||
String.valueOf(s.charAt(i)).equals("s")) {
str.append(7);
} else if (String.valueOf(s.charAt(i)).equals("t") ||
String.valueOf(s.charAt(i)).equals("u") ||
String.valueOf(s.charAt(i)).equals("v")) {
str.append(8);
} else if (String.valueOf(s.charAt(i)).equals("w") ||
String.valueOf(s.charAt(i)).equals("x") ||
String.valueOf(s.charAt(i)).equals("y") ||
String.valueOf(s.charAt(i)).equals("z")) {
str.append(9);
} else if (String.valueOf(s.charAt(i)).equals("A")) {
str.append("b");
} else if (String.valueOf(s.charAt(i)).equals("B")) {
str.append("c");
} else if (String.valueOf(s.charAt(i)).equals("C")) {
str.append("d");
} else if (String.valueOf(s.charAt(i)).equals("D")) {
str.append("e");
} else if (String.valueOf(s.charAt(i)).equals("E")) {
str.append("f");
} else if (String.valueOf(s.charAt(i)).equals("F")) {
str.append("g");
} else if (String.valueOf(s.charAt(i)).equals("G")) {
str.append("h");
} else if (String.valueOf(s.charAt(i)).equals("H")) {
str.append("i");
} else if (String.valueOf(s.charAt(i)).equals("I")) {
str.append("j");
} else if (String.valueOf(s.charAt(i)).equals("J")) {
str.append("k");
} else if (String.valueOf(s.charAt(i)).equals("K")) {
str.append("l");
} else if (String.valueOf(s.charAt(i)).equals("L")) {
str.append("m");
} else if (String.valueOf(s.charAt(i)).equals("M")) {
str.append("n");
} else if (String.valueOf(s.charAt(i)).equals("N")) {
str.append("o");
} else if (String.valueOf(s.charAt(i)).equals("O")) {
str.append("p");
} else if (String.valueOf(s.charAt(i)).equals("P")) {
str.append("q");
} else if (String.valueOf(s.charAt(i)).equals("Q")) {
str.append("r");
} else if (String.valueOf(s.charAt(i)).equals("R")) {
str.append("s");
} else if (String.valueOf(s.charAt(i)).equals("S")) {
str.append("t");
} else if (String.valueOf(s.charAt(i)).equals("T")) {
str.append("u");
} else if (String.valueOf(s.charAt(i)).equals("U")) {
str.append("v");
} else if (String.valueOf(s.charAt(i)).equals("V")) {
str.append("w");
} else if (String.valueOf(s.charAt(i)).equals("W")) {
str.append("x");
} else if (String.valueOf(s.charAt(i)).equals("X")) {
str.append("y");
} else if (String.valueOf(s.charAt(i)).equals("Y")) {
str.append("z");
} else if (String.valueOf(s.charAt(i)).equals("Z")) {
str.append("a");
} else {
str.append(s.charAt(i));
}
}
System.out.println(str);
}
}
// 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
String s = in.nextLine();
StringBuilder str = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
if (String.valueOf(s.charAt(i)).equals("a") ||
String.valueOf(s.charAt(i)).equals("b") ||
String.valueOf(s.charAt(i)).equals("c")) {
str.append(2);
} else if (String.valueOf(s.charAt(i)).equals("d") ||
String.valueOf(s.charAt(i)).equals("e") ||
String.valueOf(s.charAt(i)).equals("f")) {
str.append(3);
} else if (String.valueOf(s.charAt(i)).equals("g") ||
String.valueOf(s.charAt(i)).equals("h") ||
String.valueOf(s.charAt(i)).equals("i")) {
str.append(4);
} else if (String.valueOf(s.charAt(i)).equals("j") ||
String.valueOf(s.charAt(i)).equals("k") ||
String.valueOf(s.charAt(i)).equals("l")) {
str.append(5);
} else if (String.valueOf(s.charAt(i)).equals("m") ||
String.valueOf(s.charAt(i)).equals("n") ||
String.valueOf(s.charAt(i)).equals("o")) {
str.append(6);
} else if (String.valueOf(s.charAt(i)).equals("p") ||
String.valueOf(s.charAt(i)).equals("q") ||
String.valueOf(s.charAt(i)).equals("r") ||
String.valueOf(s.charAt(i)).equals("s")) {
str.append(7);
} else if (String.valueOf(s.charAt(i)).equals("t") ||
String.valueOf(s.charAt(i)).equals("u") ||
String.valueOf(s.charAt(i)).equals("v")) {
str.append(8);
} else if (String.valueOf(s.charAt(i)).equals("w") ||
String.valueOf(s.charAt(i)).equals("x") ||
String.valueOf(s.charAt(i)).equals("y") ||
String.valueOf(s.charAt(i)).equals("z")) {
str.append(9);
} else if (String.valueOf(s.charAt(i)).equals("A")) {
str.append("b");
} else if (String.valueOf(s.charAt(i)).equals("B")) {
str.append("c");
} else if (String.valueOf(s.charAt(i)).equals("C")) {
str.append("d");
} else if (String.valueOf(s.charAt(i)).equals("D")) {
str.append("e");
} else if (String.valueOf(s.charAt(i)).equals("E")) {
str.append("f");
} else if (String.valueOf(s.charAt(i)).equals("F")) {
str.append("g");
} else if (String.valueOf(s.charAt(i)).equals("G")) {
str.append("h");
} else if (String.valueOf(s.charAt(i)).equals("H")) {
str.append("i");
} else if (String.valueOf(s.charAt(i)).equals("I")) {
str.append("j");
} else if (String.valueOf(s.charAt(i)).equals("J")) {
str.append("k");
} else if (String.valueOf(s.charAt(i)).equals("K")) {
str.append("l");
} else if (String.valueOf(s.charAt(i)).equals("L")) {
str.append("m");
} else if (String.valueOf(s.charAt(i)).equals("M")) {
str.append("n");
} else if (String.valueOf(s.charAt(i)).equals("N")) {
str.append("o");
} else if (String.valueOf(s.charAt(i)).equals("O")) {
str.append("p");
} else if (String.valueOf(s.charAt(i)).equals("P")) {
str.append("q");
} else if (String.valueOf(s.charAt(i)).equals("Q")) {
str.append("r");
} else if (String.valueOf(s.charAt(i)).equals("R")) {
str.append("s");
} else if (String.valueOf(s.charAt(i)).equals("S")) {
str.append("t");
} else if (String.valueOf(s.charAt(i)).equals("T")) {
str.append("u");
} else if (String.valueOf(s.charAt(i)).equals("U")) {
str.append("v");
} else if (String.valueOf(s.charAt(i)).equals("V")) {
str.append("w");
} else if (String.valueOf(s.charAt(i)).equals("W")) {
str.append("x");
} else if (String.valueOf(s.charAt(i)).equals("X")) {
str.append("y");
} else if (String.valueOf(s.charAt(i)).equals("Y")) {
str.append("z");
} else if (String.valueOf(s.charAt(i)).equals("Z")) {
str.append("a");
} else {
str.append(s.charAt(i));
}
}
System.out.println(str);
}
}
发表于 2025-04-14 17:30:29
回复(0)
import java.util.Scanner;
// 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);
String password=in.nextLine();
StringBuilder result = new StringBuilder();
for (char c : password.toCharArray()){
if (Character.isLowerCase(c)) {
// 小写字母映射为对应的数字
result.append(getNumberForLowerCase(c));
} else if (Character.isUpperCase(c)) {
// 大写字母转换为小写，然后向后移动一位
result.append(transformUpperCase(c));
} else {
// 数字保持不变
result.append(c);
}
}
System.out.println(result);
}
private static int getNumberForLowerCase(char c) {
switch (c) {
case 'a':
case 'b':
case 'c':
return 2;
case 'd':
case 'e':
case 'f':
return 3;
case 'g':
case 'h':
case 'i':
return 4;
case 'j':
case 'k':
case 'l':
return 5;
case 'm':
case 'n':
case 'o':
return 6;
case 'p':
case 'q':
case 'r':
case 's':
return 7;
case 't':
case 'u':
case 'v':
return 8;
case 'w':
case 'x':
case 'y':
case 'z':
return 9;
default:
throw new IllegalArgumentException("Invalid lowercase letter: " + c);
}
}
private static char transformUpperCase(char c) {
char lowerCaseChar = Character.toLowerCase(c);
switch (lowerCaseChar) {
case 'a':
return 'b';
case 'b':
return 'c';
case 'c':
return 'd';
case 'd':
return 'e';
case 'e':
return 'f';
case 'f':
return 'g';
case 'g':
return 'h';
case 'h':
return 'i';
case 'i':
return 'j';
case 'j':
return 'k';
case 'k':
return 'l';
case 'l':
return 'm';
case 'm':
return 'n';
case 'n':
return 'o';
case 'o':
return 'p';
case 'p':
return 'q';
case 'q':
return 'r';
case 'r':
return 's';
case 's':
return 't';
case 't':
return 'u';
case 'u':
return 'v';
case 'v':
return 'w';
case 'w':
return 'x';
case 'x':
return 'y';
case 'y':
return 'z';
case 'z':
return 'a';
default:
throw new IllegalArgumentException("Invalid uppercase letter: " + c);
}
}
}
发表于 2025-02-12 19:29:49
回复(1)
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
char[] arr = in.nextLine().toCharArray();
StringBuilder s = new StringBuilder();
for (char b : arr) {
if (Character.isLowerCase(b)) {
if (b == 'a' || b == 'b' || b == 'c') {
b = '2';
} else if (b == 'd' || b == 'e' || b == 'f') {
b = '3';
} else if (b == 'g' || b == 'h' || b == 'i') {
b = '4';
} else if (b == 'j' || b == 'k' || b == 'l') {
b = '5';
} else if (b == 'm' || b == 'n' || b == 'o') {
b = '6';
} else if (b == 'p' || b == 'q' || b == 'r' || b == 's') {
b = '7';
} else if (b == 't' || b == 'u' || b == 'v') {
b = '8';
} else if (b == 'w' || b == 'x' || b == 'y' || b == 'z') {
b = '9';
}
} else if (Character.isUpperCase(b)) {
if (b == 'Z') {
b = 'a';
} else if (b >= 'A' || b >= 'Y') {
b = (char)(b + 1);
}
b = Character.toLowerCase(b);
}
s.append(b);
}
System.out.println(s);
}
}
}
发表于 2024-09-10 10:49:20
回复(0)
import java.util.Arrays;
import java.util.Collections;
import java.util.Map;
import java.util.Scanner;
import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Collectors;
// 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
System.out.println(encodePassword(in.nextLine()));
}
}
private static String encodePassword(String password){
//返回加密密码
String encodePassword = "";
Map<String,String> dictMap = new ConcurrentHashMap<>();
// 字典表
String a = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
String b = "1234567890bcdefghijklmnopqrstuvwxyza22233344455566677778889999";
for(int i = 0 ;i < a.length(); i++){
dictMap.put(Character.toString(a.charAt(i)),Character.toString(b.charAt(i)));
}
encodePassword = Arrays.stream(password.split("")).map(s->dictMap.get(s)).collect(Collectors.joining(""));
return encodePassword;
}
}
发表于 2024-09-06 01:28:00
回复(0)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
char[] res = in.nextLine().toCharArray();
for (int i = 0; i < res.length; i++) {
if (res[i] == 'w' || res[i] == 'x' || res[i] == 'y' || res[i] == 'z') {
res[i] = '9';
} else if (res[i] == 't' || res[i] == 'u' || res[i] == 'v') {
res[i] = '8';
} else if (res[i] == 'p' || res[i] == 'q' || res[i] == 'r' || res[i] == 's') {
res[i] = '7';
} else if (res[i] == 'm' || res[i] == 'n' || res[i] == 'o') {
res[i] = '6';
} else if (res[i] == 'j' || res[i] == 'k' || res[i] == 'l') {
res[i] = '5';
} else if (res[i] == 'g' || res[i] == 'h' || res[i] == 'i') {
res[i] = '4';
} else if (res[i] == 'd' || res[i] == 'e' || res[i] == 'f') {
res[i] = '3';
} else if (res[i] == 'a' || res[i] == 'b' || res[i] == 'c') {
res[i] = '2';
} else if (res[i] >= 'A' && res[i] <= 'Y'){
res[i] += 33; //不能toLowerCase
} else if (res[i] == 'Z'){
res[i] = 'a';
}
}
System.out.println(res);
}
}
发表于 2024-08-14 10:44:17
回复(0)
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String string = in.nextLine();
System.out.print(changeWords(string));
}
// 获取转换后的密码
private static String changeWords(String string) {
String tempString = string;
String[] array = string.split("");
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < array.length; i++) {
String str1 = changeToLower(array[i]);
if (str1.equals(array[i])) {
stringBuilder.append(changeToUpper(array[i]));
} else {
stringBuilder.append(str1);
}
}
return stringBuilder.toString();
}
// 转换密码中的小写字母(小写字母都变成九键键盘对应的数字)
private static String changeToLower(String string) {
if ("abc".contains(string)) {
return "2";
}
if ("def".contains(string)) {
return "3";
}
if ("ghi".contains(string)) {
return "4";
}
if ("jkl".contains(string)) {
return "5";
}
if ("mno".contains(string)) {
return "6";
}
if ("pqrs".contains(string)) {
return "7";
}
if ("tuv".contains(string)) {
return "8";
}
if ("wxyz".contains(string)) {
return "9";
}
return string;
}
// 转换密码中的大写字母(大写字母则变成小写之后往后移一位)
private static String changeToUpper(String string) {
if ("Z".equals(string)) {
return "a";
} else {
char x = string.toCharArray()[0];
if (x >= "A".toCharArray()[0] && x < "Z".toCharArray()[0]) {
char y = string.toLowerCase().toCharArray()[0];
return Character.toString((char)(y + 1));
}
}
return string;
}
}
发表于 2024-07-15 20:20:41
回复(0)
import java.util.Scanner;
// 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);
int[] index = {2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,7,8,8,8,9,9,9,9};
char[] input = in.nextLine().toCharArray();
for(int i=0; i<input.length; i++) {
if(input[i]>='0' && input[i]<='9') {
System.out.print(input[i]);
continue;
}
if(input[i]>='a' && input[i]<='z') {
System.out.print(index[input[i]-'a']);
continue;
}
if(input[i]>='A' && input[i]<'Z') {
System.out.print((char)(input[i]-'A'+'a'+1));
continue;
}
if(input[i]=='Z') {
System.out.print('a');
}
}
}
}
发表于 2024-04-27 11:19:20
回复(0)
import java.util.Scanner;
// 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 sc = new Scanner(System.in);
String password = sc.nextLine();
String a = "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
String b = "1234567890bcdefghijklmnopqrstuvwxyza22233344455566677778889999";
String result = "";
for (int i = 0; i < password.length(); i++) {
int index = a.indexOf(password.charAt(i));
result += b.charAt(index);
}
System.out.println(result);
}
}
编辑于 2024-04-16 23:13:26
回复(0)
import java.util.Scanner;
// 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 s = in.next();
for(int i = 0; i < s.length(); i++) {
String temp = s.substring(i, i + 1);
if(temp.matches("[a-z]")) {
System.out.print(getString(temp));
} else if(temp.matches("[A-Z]")) {
System.out.print(mvString(temp));
} else {
System.out.print(temp);
}
}
}
}
//小写
public static String getString(String s) {
String res = "";
if("abc".contains(s)) {
res = "2";
} else if("def".contains(s)){
res = "3";
}else if("ghi".contains(s)){
res = "4";
}else if("jkl".contains(s)){
res = "5";
}else if("mno".contains(s)){
res = "6";
}else if("pqrs".contains(s)){
res = "7";
}else if("tuv".contains(s)){
res = "8";
}else if("wxyz".contains(s)){
res = "9";
}
return res;
}
//大写
public static String mvString(String s) {
String res = "";
if("Z".equals(s)){
res = "a";
} else {
res = String.valueOf((char)(s.toLowerCase().charAt(0) + 1));
}
return res;
}
}
发表于 2024-03-31 23:38:35
回复(0)
还是映射表爽啊
import java.util.Scanner;
// 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);
String line = in.nextLine();
String password = simplePassword(line);
System.out.println(password);
}
private static char[] map = new char[128];
static {
map['a'] = '2';map['b'] = '2';map['c'] = '2';
map['d'] = '3';map['e'] = '3';map['f'] = '3';
map['g'] = '4';map['h'] = '4';map['i'] = '4';
map['j'] = '5';map['k'] = '5';map['l'] = '5';
map['m'] = '6';map['n'] = '6';map['o'] = '6';
map['p'] = '7';map['q'] = '7';map['r'] = '7';map['s'] = '7';
map['t'] = '8';map['u'] = '8';map['v'] = '8';
map['w'] = '9';map['x'] = '9';map['y'] = '9';map['z'] = '9';
for (char c = 'A'; c < 'Z'; c++) {
map[c] = (char) (c - 'A' + 'a'+1);
}
for (char c = '0'; c <= '9'; c++) {
map[c] = c;
}
map['Z'] = 'a';
}
private static String simplePassword(String line) {
char[] arr = line.toCharArray();
for (int i = 0; i < arr.length; i++) {
char c = arr[i];
char nc = map[c];
arr[i] = nc;
}
return new String(arr);
}
}
发表于 2024-03-14 14:25:18
回复(0)
精简版屎山代码
import java.util.Scanner;
public class hj21 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String str = in.nextLine();
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if(c >= 'A' && c <= 'Z'){
c = (char) ((c + 33-97)%26 +97);
}else if(c >= 'a' && c <= 'c'){
c = '2';
}else if(c >= 'd' && c <= 'f'){
c = '3';
}else if(c >= 'g' && c <= 'i'){
c = '4';
}else if(c >= 'j' && c <= 'l'){
c = '5';
}else if(c >= 'm' && c <= 'o'){
c = '6';
}else if(c >= 'p' && c <= 's'){
c = '7';
}else if(c >= 't' && c <= 'v'){
c = '8';
}else if(c >= 'w' && c <= 'z'){
c = '9';
}
System.out.print(c);
}
}
}
发表于 2024-01-13 17:42:58
回复(0)
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String s = sc.nextLine();
char[] chars = s.toCharArray();
StringBuilder sb = new StringBuilder();
for (char c : chars) {
// 如果是正整数就不需要加密
if (c >= '0' && c <= '9') {
sb.append(c);
} else if (c >= 'A' && c <= 'Y') {
// 如果是大写字母 那么就将其转为小写字母并且后移一位
char c1 = (char) (c + 32 + 1);
sb.append(c1);
} else if (c == 'Z') {
sb.append('a');
} else {
// 小写字母进行map校验
switch (c) {
case 1:
sb.append(1);
break;
case 'a':
case 'b':
case 'c':
sb.append(2);
break;
case 'd':
case 'e':
case 'f':
sb.append(3);
break;
case 'g':
case 'h':
case 'i':
sb.append(4);
break;
case 'j':
case 'k':
case 'l':
sb.append(5);
break;
case 'm':
case 'n':
case 'o':
sb.append(6);
break;
case 'p':
case 'q':
case 'r':
case 's':
sb.append(7);
break;
case 't':
case 'u':
case 'v':
sb.append(8);
break;
case 'w':
case 'x':
case 'y':
case 'z':
sb.append(9);
break;
case '0':
sb.append(0);
break;
}
}
}
System.out.println(sb);
}
发表于 2024-01-11 20:40:02
回复(0)
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
// 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[] arg){
Scanner sc = new Scanner(System.in);
String str = sc.next();
String result = str.replaceAll("[abc]", "2")
.replaceAll("[def]", "3")
.replaceAll("[ghi]", "4")
.replaceAll("[jkl]", "5")
.replaceAll("[mno]", "6")
.replaceAll("[pqrs]", "7")
.replaceAll("[tuv]", "8")
.replaceAll("[wxyz]", "9");
Map<String, String> dict = new HashMap();
for (int i = 'A'; i < 'Z'; i++) {
char i1 = (char) (i + 1);
dict.put(String.valueOf((char) i), String.valueOf(i1).toLowerCase());
}
dict.put("Z", "a");
for (Map.Entry<String, String> entry: dict.entrySet()) {
result = result.replaceAll(entry.getKey(), entry.getValue());
}
System.out.println(result);
}
}
import java.util.regex.Matcher;
import java.util.regex.Pattern;
// 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[] arg){
Scanner sc = new Scanner(System.in);
String str = sc.next();
String result = str.replaceAll("[abc]", "2")
.replaceAll("[def]", "3")
.replaceAll("[ghi]", "4")
.replaceAll("[jkl]", "5")
.replaceAll("[mno]", "6")
.replaceAll("[pqrs]", "7")
.replaceAll("[tuv]", "8")
.replaceAll("[wxyz]", "9");
Map<String, String> dict = new HashMap();
for (int i = 'A'; i < 'Z'; i++) {
char i1 = (char) (i + 1);
dict.put(String.valueOf((char) i), String.valueOf(i1).toLowerCase());
}
dict.put("Z", "a");
for (Map.Entry<String, String> entry: dict.entrySet()) {
result = result.replaceAll(entry.getKey(), entry.getValue());
}
System.out.println(result);
}
}
发表于 2024-01-06 21:36:28
回复(0)
俺这是写了个啥玩意儿啊
import java.util.Scanner;
// 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
String str = in.nextLine();
//1. 小写字母转九键
// for(int i = 0;i < str.length();i++){
// switch(str.charAt(i)){
// case 'a','b','c':
// str.replace()
// }
// }
str = str.replace('a','2')
.replace('b','2')
.replace('c','2')
.replace('d','3')
.replace('e','3')
.replace('f','3')
.replace('g','4')
.replace('h','4')
.replace('i','4')
.replace('j','5')
.replace('k','5')
.replace('l','5')
.replace('m','6')
.replace('n','6')
.replace('o','6')
.replace('p','7')
.replace('q','7')
.replace('r','7')
.replace('s','7')
.replace('t','8')
.replace('u','8')
.replace('v','8')
.replace('w','9')
.replace('x','9')
.replace('y','9')
.replace('z','9')
//2. 大写字母小写之后后移一位
.replace('A','b')
.replace('B','c')
.replace('C','d')
.replace('D','e')
.replace('E','f')
.replace('F','g')
.replace('G','h')
.replace('H','i')
.replace('I','j')
.replace('J','k')
.replace('K','l')
.replace('L','m')
.replace('M','n')
.replace('N','o')
.replace('O','p')
.replace('P','q')
.replace('Q','r')
.replace('R','s')
.replace('S','t')
.replace('T','u')
.replace('U','v')
.replace('V','w')
.replace('W','x')
.replace('X','y')
.replace('Y','z')
.replace('Z','a');
//输出
System.out.println(str);
}
}
发表于 2023-12-21 21:50:59
回复(2)
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
// 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);
String str = in.nextLine();
str = str.replaceAll("[abc]", "2")
.replaceAll("[def]", "3")
.replaceAll("[ghi]", "4")
.replaceAll("[jkl]", "5")
.replaceAll("[mno]", "6")
.replaceAll("[pqrs]", "7")
.replaceAll("[tuv]", "8")
.replaceAll("[wxyz]", "9");
StringBuilder stb = new StringBuilder();
for (int i = 0; i < str.length(); i++) {
String s = str.charAt(i)+"";
if (s.matches("[A-Z]")) {
s = s.toLowerCase();
if ("z".equals(s)) {
stb.append("a");
} else {
char c = s.charAt(0);
stb.append((char) (c+1));
}
} else {
stb.append(s);
}
}
System.out.println(stb);
}
}
发表于 2023-09-27 16:39:18
回复(0)
import java.util.Scanner;
// 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);
String str=in.nextLine();
for(int i=0;i<str.length();i++){
if(str.charAt(i)>='a'&&str.charAt(i)<='c'){
System.out.print("2");
}else if(str.charAt(i)>='d'&&str.charAt(i)<='f'){
System.out.print("3");
}else if(str.charAt(i)>='g'&&str.charAt(i)<='i'){
System.out.print("4");
}else if(str.charAt(i)>='j'&&str.charAt(i)<='l'){
System.out.print("5");
}else if(str.charAt(i)>='m'&&str.charAt(i)<='o'){
System.out.print("6");
}else if(str.charAt(i)>='p'&&str.charAt(i)<='s'){
System.out.print("7");
}else if(str.charAt(i)>='t'&&str.charAt(i)<='v'){
System.out.print("8");
}else if(str.charAt(i)>='w'&&str.charAt(i)<='z'){
System.out.print("9");
}else if(str.charAt(i)>='A'&&str.charAt(i)<='Y'){
System.out.print((char)((int)str.charAt(i)+33));
}else if(str.charAt(i)=='Z'){
System.out.print("a");
}else{
System.out.print(str.charAt(i));
}
}
}
}
发表于 2023-09-15 21:11:57
回复(0)
import java.util.Scanner;
// 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);
char[] str=in.nextLine().toCharArray();
for(int i=0;i<str.length;i++){
System.out.print(parse(str[i]));
}
}
private static char parse(char c){
if(c>='a'&&c<='z'){
if(c>='a'&&c<='c'){
return '2';
}
if(c>='d'&&c<='f'){
return '3';
}
if(c>='g'&&c<='i'){
return '4';
}
if(c>='j'&&c<='l'){
return '5';
}
if(c>='m'&&c<='o'){
return '6';
}
if(c>='p'&&c<='s'){
return '7';
}
if(c>='t'&&c<='v'){
return '8';
}
if(c>='w'&&c<='z'){
return '9';
}
}
if(c>='A'&&c<='Z'){
return (char)((c-'A'+1)%26+'a');
}
return c;
}
}
发表于 2023-09-10 15:38:27
回复(0)
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