# [Java] 多執行緒 ## 修飾字 ### Synchronized 有被 Synchronized 修飾的對象或方法,可用來鎖定一個物件、類別或方法,一次只允許一個執行緒進行處理,以確保不會有多個執行緒存取多個資源。 * Override 無法繼承 synchronized 效果 ### Volatile 參考資料: [Java 多執行序 - 同步、鎖](https://hackmd.io/@AlienHackMd/Hk6UDX-f8#synchronized-%E5%90%8C%E6%AD%A5)
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