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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## 第一個java程序HelloWorld HelloWorld.java ``` public class HelloWorld{ public static void main(String[] args){ System.out.println("java5班第一個程序"); } } ``` public:公有,修飾的內容,在工程中可見 class:類 HelloWorld:類名,一個java源文件,最多擁有一個公有類,如果一個源文件有公有類,那么這個源文件的名字必須與類名完全一致 static:靜態 void:沒有返回值 main(String[] args):main方法(函數),是程序的入口 System.out.println():打印輸出一個語句
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                              哎呀哎呀视频在线观看