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2025-12-12 10:48:03
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**标题:** 零基础入门Java,手把手教你从小白到大神!👨💻
**正文:**
姐妹们!今天来聊聊Java入门,真的没有你们想的那么难!👀 作为一个从零开始学编程的小白,我一开始也觉得Java好复杂,但跟着我的步骤走,你也能轻松上手!💪
---
### **1. 为什么选择Java?**
Java是编程界的“常青树”,应用范围超广!无论是开发网站、手机App,还是大数据、人工智能,Java都能搞定!而且它的语法清晰,特别适合新手入门!🌟
---
### **2. 学习Java的第一步:安装JDK**
JDK是Java开发工具包,没有它可不行!
- 去官网下载JDK(推荐最新版本)
- 配置环境变量(网上教程超多,跟着做就行)
- 安装完成后,打开命令行输入`java -version`,看到版本号就说明安装成功啦!🎉
---
### **3. 第一个Java程序:Hello World!**
学编程的仪式感就是从“Hello World”开始的!
```java
public class HelloWorld {
public static void main(String
[]
args) {
System.out.println(\"Hello World!\");
}
}
```
保存为`HelloWorld.java`,然后在命令行输入`javac HelloWorld.java`编译,再输入`java HelloWorld`运行,看到“Hello World!”就说明你成功啦!🎊
---
### **4. 学习资源推荐**
- **书籍**:《Java核心技术》卷1,经典中的经典!
- **网站**:菜鸟教程、B站Java入门视频(免费又详细!)
- **工具**:IntelliJ IDEA(超好用的Java开发工具)
---
### **5. 学习小贴士**
- **多敲代码**:光看不动手是不行的!
- **加入社区**:CSDN、GitHub上有很多Java大神,不懂就问!
- **坚持打卡**:每天学一点,积少成多!
---
Java入门真的不难,只要你肯动手,很快就能写出自己的小程序!💻 如果你也在学Java,欢迎评论区一起交流呀~👇
#Java入门
#编程小白
#学习打卡
#程序员日常
#零基础学编程
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CONNECT:[ UseTime:0.000450s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000753s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000287s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000216s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000432s ]
SELECT * FROM `set` [ RunTime:0.000161s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000479s ]
SELECT * FROM `article` WHERE `id` = 458108 LIMIT 1 [ RunTime:0.000336s ]
UPDATE `article` SET `lasttime` = 1765639766 WHERE `id` = 458108 [ RunTime:0.002707s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000195s ]
SELECT * FROM `article` WHERE `id` < 458108 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000353s ]
SELECT * FROM `article` WHERE `id` > 458108 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000299s ]
SELECT * FROM `article` WHERE `id` < 458108 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000431s ]
SELECT * FROM `article` WHERE `id` < 458108 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000844s ]
SELECT * FROM `article` WHERE `id` < 458108 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000870s ]
0.074813s