日常练习

20220605/src/斐波那契数列.java

@@ -0,0 +1,22 @@
+import java.util.Scanner;
+
+public class 斐波那契数列 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        System.out.println(isFibonacci(n));
+    }
+    public static int isFibonacci(int n){
+        int a = 1, b = 1, c = 0;
+        if (n == 1 || n == 2){
+            return  1;
+        }else{
+            for (int i = 3; i <= n; i++) {
+                c = a + b;
+                a = b;
+                b = c;
+            }
+            return c;
+        }
+    }
+}

20220605/src/递归打印数字的每一位.java

@@ -0,0 +1,21 @@
+import java.util.Scanner;
+
+public class 递归打印数字的每一位 {
+    public static void main(String[] args) {
+        Scanner scan = new Scanner(System.in);
+        int n = scan.nextInt();
+        func1(n);
+    }
+    public static int[] func1(int n){
+        int i = 0;
+        int[] arr = new int[100];
+        if (n < 10){
+            arr[i] = n;
+            return arr;
+        }else{
+            arr[i] = n % 10;
+            i++;
+            return n /= 10;
+        }
+    }
+}

20220605/src/递归返回的数字之和.java

@@ -11,7 +11,7 @@ public static int func(int n){
         if (n <= 9){
             return n;
         }else {
-            return 
+            return n % 10 + func(n / 10);
         }
     }
 }

20220607/20220607.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

20220607/src/自己造一个对象.java

@@ -0,0 +1,42 @@
+public class 自己造一个对象 {
+    class girlfriend{
+        public String name;
+        public String Englishname;
+        public int age;
+        public int height;
+        public int weight;
+        public String number;
+        public String address;
+
+        public void responde1(){
+            System.out.println("早安");
+        }
+        public void responde2(){
+            System.out.println("午安");
+        }
+        public void responde3(){
+            System.out.println("晚安");
+        }
+        public void responde4(){
+            System.out.println("啊哈哈哈哈哈哈，憨憨");
+        }
+        public void responde5(){
+            System.out.println("小狐狸~");
+        }
+        public void responde6(){
+            System.out.println("憨批");
+        }
+    }
+    public static void main(String[] args) {
+        girlfriend the_little_prince = new girlfriend();
+        the_little_prince.name = "绾";
+        the_little_prince.Englishname = "Isbella";
+        the_little_prince.age = 19;
+        the_little_prince.height = 168;
+        the_little_prince.weight = 103;
+        the_little_prince.number = "62";
+        the_little_prince.address = "CA";
+
+        the_little_prince.responde1();
+    }
+}