多項選擇題

Click the Exhibit button.
Given：

Which two statements are true if a NullPointerException is thrown on line 3 of class C？（）

A. The application will crash.
B. The code on line 29 will be executed.
C. The code on line 5 of class A will execute.
D. The exception will be propagated back to line 27.
E. The code on line 5 of class B will execute.

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單項選擇題

Given：

What is the result？（）

A. A new Item object is created with the preferred value in the id attribute.
B. The attribute id in the Item object is modified to the new value.
C. Compilation fails.
D. An exception is thrown at runtime.
E. The attribute id in the Item object remains unchanged.

單項選擇題

Given：

What is the result？（）

A. An exception is thrown at runtime.
B. int Long
C. Compilation fails.
D. Short Long

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Click the Exhibit button. Given： Which two statements are true if a NullPointerException is thrown on line 3 of class C？（）

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Given： What is the result？ （）

Given： What is the result？（）

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Click the Exhibit button.
Given：

Which two statements are true if a NullPointerException is thrown on line 3 of class C？（）

Given：

What is the result？（）

Given：

What is the result？（）