[英]Why do I have to deal with Throwable if I invoke getCause() on an Exception
[英]Why i have array [] option as consturctor invoke?
您不必為您的類提供任何構造函數,但在執行此操作時必須小心。 編譯器自動為任何沒有構造函數的類提供一個無參數的默認構造函數。
https://docs.oracle.com/javase/tutorial/java/javaOO/constructors.html
...和..數組[]? 這是什么意思?
這是創建一個GooglePlayConnection
數組:
GooglePlayConnection[] connections = new GooglePlayConnection[10];
connections[0] = new GooglePlayConnection(/*...*/);
// ...
或者
GooglePlayConnection[] connections = new GooglePlayConnection[] {
new GooglePlayConnection(/*...*/),
// ...
};
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