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                # `static`關鍵字 > `static`修飾的屬性和方法都屬于類,子類無法重寫該方法 > > `static`還能進行靜態代碼塊的處理 > > `static`也可以用于導包到具體的方法 ## 一些沒見過的內容 > 匿名代碼塊和靜態代碼塊 ~~~ ?{ ? ? ?// 用于賦初值 ? ? ?System.out.println("匿名代碼塊"); ?} ~~~ ~~~ ?// 靜態代碼塊只執行一次 ?static { ? ? ?System.out.println("靜態代碼塊"); ?} ~~~ > 使用`static`來導包到具體的方法,類中調用則不需要寫全 ~~~ ?// 靜態導入包 ?import static java.lang.Math.random; ~~~ ~~~ ?public static void main(String[] args) { ? ? ?// 這里可以直接調用 ? ? ?System.out.println(random()); ?} ~~~ > 被`final`關鍵字修飾的類,無法被繼承!
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