Given: What is the result?

The correct answer is C. An exception is thrown at runtime. The code compile fine but java.lang.NullPointerException is thrown at runtime. x has no value. The code would run if line 2 was changed to:

Generics and Collections

Question

Given:

What is the result?

Options

A5
B6
CAn exception is thrown at runtime
DCompilation fails due to an error on line 6
ECompilation fails due to an error on line 7

How the community answered

(59 responses)

A
12% (7)
B
2% (1)
C
75% (44)
D
5% (3)
E
7% (4)

Explanation

The code compile fine but java.lang.NullPointerException is thrown at runtime. x has no value. The code would run if line 2 was changed to:

Topics

#runtime exception#ClassCastException#generics type safety#unchecked cast

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