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Which of the following class level (nonlocal) variable declarations will not compile?

Q: Which of the following class level (nonlocal) variable declarations will not compile?

Option C will not compile; the synchronized modifier applies only to methods. Option A and B will compile because protected and transient are legal variable modifiers. Option D will compile because volatile is a proper variable modifier.

protected int a;
transient int b = 3;
private synchronized int e;
volatile int d;

Correct Answer: private synchronized int e;

Explanation:

Option C will not compile; the synchronized modifier applies only to methods.

Option A and B will compile because protected and transient are legal variable modifiers. Option D will compile because volatile is a proper variable modifier.

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