From 0bdf673a627b3e4d856adbc0653b518ff0ce6298 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=96=B9=E5=A2=9E=E5=85=B4?= <1962943263@qq.com>
Date: Wed, 29 Mar 2023 21:28:45 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AC=AC=E4=B8=80=E6=AC=A1=E9=9D=A2=E5=90=91?=
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---
 .../\344\272\224\351\201\223\351\242\230.md"  | 116 ++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 "42 \346\226\271\345\242\236\345\205\264/\344\272\224\351\201\223\351\242\230.md"

diff --git "a/42 \346\226\271\345\242\236\345\205\264/\344\272\224\351\201\223\351\242\230.md" "b/42 \346\226\271\345\242\236\345\205\264/\344\272\224\351\201\223\351\242\230.md"
new file mode 100644
index 0000000..46804c7
--- /dev/null
+++ "b/42 \346\226\271\345\242\236\345\205\264/\344\272\224\351\201\223\351\242\230.md"	
@@ -0,0 +1,116 @@
+```java
+package PACKAGE_NAME.src.k;
+import java.util.Scanner;
+
+public class j {
+    // 第一题
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请输入一个数字:");
+        int x = sc.nextInt();
+        String z = String.valueOf(x);
+        String l = "";
+        if(z.length()%2!=0){
+            String y = z.substring(0,(z.length()-1)/2);
+            for(int i =z.length()-1;i>(z.length()-1)/2;i--){
+                char one = z.charAt(i);
+                String str = String.valueOf(one);
+                l = l+str;
+
+
+            }
+            if (y.equals(l)){
+                System.out.println(x + "这个数是一个回文数");
+            }
+        } else if (z.length()%2==0) {
+            String y = z.substring(0,z.length()/2);
+            for(int i =z.length()-1;i>=z.length()/2;i--){
+                char negation = z.charAt(i);
+                String str = String.valueOf(negation);
+                l = l+str;
+            }
+            if (y.equals(l)){
+                System.out.println(x + "这个数是一个回文数");
+            }
+        }
+
+
+
+    }
+
+
+    // 第二题
+    public static void narcissistic_number() {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("请输入一个数字:");
+        int x = sc.nextInt();
+
+     int sum = 0;
+        if (x>99 && x<=999){
+            String z = String.valueOf(x);
+
+            for (int i = 0; i<z.length();i++){
+                char one = z.charAt(i);
+               String one1 = String.valueOf(one);
+               int num = Integer.parseInt(one1);
+                int mi = num*num*num;
+                sum = sum+mi;
+
+            }
+            if(sum == x){
+                System.out.println("这个数是一个水仙花数值为"+sum);
+            }else{
+                System.out.println(x + "这个数不是水仙花数");
+           }
+        }
+    }
+
+    // 第三题
+    public static void number() {
+
+        while (true) {
+            Scanner sc = new Scanner(System.in);
+            System.out.println("请输入一个字符：");
+            char c = sc.next().charAt(0);
+
+            if (c>='0' && c<='9') {
+                System.out.println("是数字字符");
+            }else{
+                System.out.println("不是数字字符");
+            }
+        }
+    }
+
+    // 第四题
+    public static void Ascll() {
+        while (true) {
+            Scanner sc = new Scanner(System.in);
+            System.out.println("请输入一个字符：");
+            char c = sc.next().charAt(0);
+
+            if((c>='a' && c<='z') || (c>='A' && c<='Z')){
+                System.out.println("是字母字符");
+            }else{
+                System.out.println("不是字母字符");
+            }
+        }
+    }
+
+
+    // 第五题
+    public static void year() {
+        while (true) {
+            Scanner sc = new Scanner(System.in);
+            System.out.println("请输入一个年份：");
+            int year = sc.nextInt();
+
+            if(year % 4 == 0 || year % 400 == 0 && year % 100 !=0){
+                System.out.println(year+"是闰年");
+            }else{
+                System.out.println(year+"不是闰年");
+            }
+        }
+    }
+}
+```
+
-- 
Gitee