From 74393990974336eb89efc24781d5cb0700f67356 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 14:57:02 +0000 Subject: [PATCH 1/8] =?UTF-8?q?=E6=96=B0=E5=BB=BA=2034.=E5=88=98=E6=99=BA?= =?UTF-8?q?=E7=BF=94?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- "34.\345\210\230\346\231\272\347\277\224/.keep" | 0 1 file changed, 0 insertions(+), 0 deletions(-) create mode 100644 "34.\345\210\230\346\231\272\347\277\224/.keep" diff --git "a/34.\345\210\230\346\231\272\347\277\224/.keep" "b/34.\345\210\230\346\231\272\347\277\224/.keep" new file mode 100644 index 0000000..e69de29 -- Gitee From 7b2e9fb4451dc68527d35549a81d5e2f0b561d83 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 14:57:54 +0000 Subject: [PATCH 2/8] =?UTF-8?q?=E7=AC=AC=E4=BA=8C=E6=AC=A1=E4=BD=9C?= =?UTF-8?q?=E4=B8=9A..?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: 刘智翔 <2045602860@qq.com> --- ...va\346\211\253\346\217\217\345\231\250.md" | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 "34.\345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" diff --git "a/34.\345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" "b/34.\345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" new file mode 100644 index 0000000..559c146 --- /dev/null +++ "b/34.\345\210\230\346\231\272\347\277\224/20221129java\346\211\253\346\217\217\345\231\250.md" @@ -0,0 +1,73 @@ + # java扫描器 + +1.创建扫描器 + +```java +Scanner sc=new Scanner(System.in) +``` + +2.创建变量 + +```java +String name=sc.next() + double xiaoshu=sc.nextdouble() + int number=sc.nextint() +``` + +3.运算符 + +```java ++-*/% +``` + +4.字符串相关 + +```java +public class lx { + public static void main(String[] args) { + int a=3,b=4,c=5; + System.out.println(a+b+c);//值为12 + System.out.println(""+a+b+c);//值为345 + } +} +``` + +## 作业 + +```java +1.import java.util.Scanner; + +public class jiu { + public static void main(String[] args) { + Scanner sc = new Scanner(System.in); + System.out.println("请输入一个四位数"); + int qi= sc.nextInt(); + int qw=qi/1000; + int bw=qi/100%10; + int sw=qi/10%10; + int gw=qi%10; + System.out.println("千位数为；"+qw); + System.out.println("百位数为；"+bw); + System.out.println("十位数为；"+sw); + System.out.println("个位数为；"+gw); + } +} + +2.import java.util.Scanner; + +public class qi { + public static void main(String[] args) { + Scanner sc=new Scanner(System.in); + System.out.println("请输入一个华氏温度"); + int jiu= sc.nextInt(); + int ssd=(jiu-32)*5/9; + System.out.println("摄氏度为；"+ssd); + System.out.println("请输入一个摄氏温度"); + int noah= sc.nextInt(); + int hsd=noah*9/5+32; + System.out.println("华氏度为："+hsd); + } +} + +``` + -- Gitee From a8faf03c7f6aa2a65c868e2b9c231212c5451b80 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 14:59:25 +0000 Subject: [PATCH 3/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2003?= =?UTF-8?q?=20=E8=B5=96=E5=BF=83=E5=A6=8D?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20221125.md" | 181 ------------------ 1 file changed, 181 deletions(-) delete mode 100644 "03 \350\265\226\345\277\203\345\246\215/20221125.md" diff --git "a/03 \350\265\226\345\277\203\345\246\215/20221125.md" "b/03 \350\265\226\345\277\203\345\246\215/20221125.md" deleted file mode 100644 index 875202c..0000000 --- "a/03 \350\265\226\345\277\203\345\246\215/20221125.md" +++ /dev/null @@ -1,181 +0,0 @@ -### 基础语法 - ------- - -#### 整数 - -**byte** 取值范围 -128~127 - -```java -byte price = 12 //price为变量名 12为变量值 -``` - -**short** 取值范围 -32768-32767 - -```java -short price = 327 -``` - -**int（默认）** 取值范围 -2的31次方到2的31次方-1 - -```java -int price = 998 -``` - -**long** 取值范围 -2的63次方到2的63次方-1 - -```java -long price = 2000 -``` - -*顺序： byte Date: Tue, 29 Nov 2022 14:59:49 +0000 Subject: [PATCH 4/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2004?= =?UTF-8?q?=20=E6=9D=8E=E6=98=8E=E5=81=A5?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20221126java\345\217\230\351\207\217.md" | 70 ------------------- 1 file changed, 70 deletions(-) delete mode 100644 "04 \346\235\216\346\230\216\345\201\245/20221126java\345\217\230\351\207\217.md" diff --git "a/04 \346\235\216\346\230\216\345\201\245/20221126java\345\217\230\351\207\217.md" "b/04 \346\235\216\346\230\216\345\201\245/20221126java\345\217\230\351\207\217.md" deleted file mode 100644 index 1298981..0000000 --- "a/04 \346\235\216\346\230\216\345\201\245/20221126java\345\217\230\351\207\217.md" +++ /dev/null @@ -1,70 +0,0 @@ -# java - -## 数字类型 - -1.字符 - -```java -char sex ='男'; -``` - - - -2.整数 - -```java -byte short int[默认] long -``` - - - -3.小数 - -```java -float double[默认] -``` - - - -4.字符串 - -```java -String -``` - - - -5.布尔 - -```java -boolean -``` - -## 变量 - -1.格式：数字类型 变量名 = 变量值； 例：int price = 998 - -2.注意事项：（1）变量名不能重复 （2）变量未赋值，不能使用 - -​ （3）定义long类型变量，数据后面加L 以此类推 - -## 关键字 - -1.什么是关键字被: Java语言赋予了特定含义的单词 - -2.特点：全部小写 常用的代码编辑器，有特殊的颜色标记 - -## 作业 - -```java -public class work { - public static void main(String[] args) { - System.out.println("我爱2班"); - System.out.println("我爱念哥"); - String tell=("念哥真帅，"); - String tell1=("年年十八"); - System.out.println(tell+"念念十八"+tell1); - } -} -``` - -- Gitee From b015cc8c384418e86a681a48f363bd5654cdb0a2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 15:01:42 +0000 Subject: [PATCH 5/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2039?= =?UTF-8?q?=20=E9=83=AD=E6=82=A6=E8=BF=8E?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...va\347\254\254\344\270\200\350\257\276.md" | 62 ------------------- 1 file changed, 62 deletions(-) delete mode 100644 "39 \351\203\255\346\202\246\350\277\216/2022 11.17\345\255\246\344\271\240Java\347\254\254\344\270\200\350\257\276.md" diff --git "a/39 \351\203\255\346\202\246\350\277\216/2022 11.17\345\255\246\344\271\240Java\347\254\254\344\270\200\350\257\276.md" "b/39 \351\203\255\346\202\246\350\277\216/2022 11.17\345\255\246\344\271\240Java\347\254\254\344\270\200\350\257\276.md" deleted file mode 100644 index 02c93d4..0000000 --- "a/39 \351\203\255\346\202\246\350\277\216/2022 11.17\345\255\246\344\271\240Java\347\254\254\344\270\200\350\257\276.md" +++ /dev/null @@ -1,62 +0,0 @@ -# java - -### Java基础 - -main方法是java程序的入口 - -sout快捷键——System out println - -//注释内容 Ctr+/ 再按一次取消 - -### 数据类型 - -数值型 整数：byte，short， int（默认）， long - -​ 浮点数：float， double（默认） - -​ 字符：char - -非数值型 布尔：boolean - - - -### 变量 - -根据变量名进行使用，可以输出，也可以修改值 - -##### 注意 - -1.变量名不能重复 - -2.变量未赋值不能使用 - -3.定义long类型变量，数据后加l - -4.定义folat类型变量，数据后加f - -### 标识符 - -不能数字开头 - -不能是关键字 - -区分大小写 - - - -# 作业 - -```java -public class hh { - public static void main(String[] args) { - System.out.println("张老师"); - String name="张老师"; - int age=18; - char gender='男'; - System.out.println("姓名:"+name); - System.out.println("年龄:"+age); - System.out.println("性别:"+gender); - System.out.println("张老师，你是我的神"); - } -} -``` \ No newline at end of file -- Gitee From ee87e6c9d84d417b6d8a29494912aac202e31f07 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 15:01:46 +0000 Subject: [PATCH 6/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2005?= =?UTF-8?q?=E8=B0=A2=E9=93=96=E6=B5=A9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...6 \350\260\242\351\223\226\346\265\251.md" | 41 ------------------- 1 file changed, 41 deletions(-) delete mode 100644 "05\350\260\242\351\223\226\346\265\251/1126 \350\260\242\351\223\226\346\265\251.md" diff --git "a/05\350\260\242\351\223\226\346\265\251/1126 \350\260\242\351\223\226\346\265\251.md" "b/05\350\260\242\351\223\226\346\265\251/1126 \350\260\242\351\223\226\346\265\251.md" deleted file mode 100644 index 9fed3a6..0000000 --- "a/05\350\260\242\351\223\226\346\265\251/1126 \350\260\242\351\223\226\346\265\251.md" +++ /dev/null @@ -1,41 +0,0 @@ -# 笔记 - -数值型分为：整数 浮点 字符 - -非数值 ：布尔型 - -main是进入java的入口 - -print 打印输出 ln换行 - -标识符： - -由数字，字母，下划线和美元符号￥组成 - -不能数字开头 - -不能是关键字 - -# 代码 - -~~~java -public class NIANGE { - public static void main(String[] args) { - String name="张念山"; - String name3="念哥"; - byte age=18; - char gender='男'; - System.out.println("我的老师叫:" +name); - System.out.println("外号"+name3); - System.out.println("今年"+age+"岁"); - System.out.println("性别"+gender+"爱好女未婚"); - System.out.println("有意者速度私聊我"); - - - System.out.println(); - } -} - -~~~ - -![](E:\照片\微信图片_20221126203049.jpg) \ No newline at end of file -- Gitee From 670e4809f03206da46746b84ca4d1eca1320c3f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 15:01:59 +0000 Subject: [PATCH 7/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2006?= =?UTF-8?q?=20=E9=99=88=E5=BF=97=E4=BC=9F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20221126 Java\345\217\230\351\207\217.md" | 52 ------------------- 1 file changed, 52 deletions(-) delete mode 100644 "06 \351\231\210\345\277\227\344\274\237/20221126 Java\345\217\230\351\207\217.md" diff --git "a/06 \351\231\210\345\277\227\344\274\237/20221126 Java\345\217\230\351\207\217.md" "b/06 \351\231\210\345\277\227\344\274\237/20221126 Java\345\217\230\351\207\217.md" deleted file mode 100644 index fffbe6a..0000000 --- "a/06 \351\231\210\345\277\227\344\274\237/20221126 Java\345\217\230\351\207\217.md" +++ /dev/null @@ -1,52 +0,0 @@ -# Java - - - -## 变量 - - - -1.字符 - -```jav -char text="只能输入一个" -``` - -2.整数 - -```java -byte short int long -``` - - 3.小数 - -```java -float double -``` - -4.字符串 - -```java -String -``` - -5.布尔 - -```java -boolean -``` - -## 作业 - -```java -public class q { - public static void main(String[] args) { - int age=18; - String name="念哥"; - String you="你是"; - int Class=2; - System.out.println(name+"，"+you+"花儿，"+you+"光。"+you+"闽大顶呱呱，永远"+Class+"班，"+"年年"+age+"等"); - } -} -``` - -- Gitee From 38fafbd499542026c319ba1d2e2798470e5e612d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=88=98=E6=99=BA=E7=BF=94?= <2045602860@qq.com> Date: Tue, 29 Nov 2022 15:02:06 +0000 Subject: [PATCH 8/8] =?UTF-8?q?=E5=88=A0=E9=99=A4=E6=96=87=E4=BB=B6=2007?= =?UTF-8?q?=20=E5=88=98=E6=96=87=E9=94=8B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../20221126 java\345\217\230\351\207\217.md" | 15 --------------- 1 file changed, 15 deletions(-) delete mode 100644 "07 \345\210\230\346\226\207\351\224\213/20221126 java\345\217\230\351\207\217.md" diff --git "a/07 \345\210\230\346\226\207\351\224\213/20221126 java\345\217\230\351\207\217.md" "b/07 \345\210\230\346\226\207\351\224\213/20221126 java\345\217\230\351\207\217.md" deleted file mode 100644 index 0c33c12..0000000 --- "a/07 \345\210\230\346\226\207\351\224\213/20221126 java\345\217\230\351\207\217.md" +++ /dev/null @@ -1,15 +0,0 @@ -```作业 -public class zy1 { - public static void main(String[] args) { - String name = "张念山"; - int age = 18; - char gender = '没'; - String pp = "伤心"; - System.out.println("他叫"+name+"是我的班主任，他很年轻看起来像"+age+"岁。"); - System.out.println("他昨天"+gender+"帮我拿快递，我真的很"+pp+"。"); - - - } -} -``` - -- Gitee