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NEW QUESTION 42
Which method throws an exception for not-a-number and infinite input values?
A)

B)

C)

D)

A. Option BB. Option CC. Option AD. Option D

Answer: C

 

NEW QUESTION 43
Given:

What is the result?

A. 0B. 1C. 2D. 3

Answer: A

Explanation:

 

NEW QUESTION 44
Given:

What prevents this code from compiling?

A. The calculateSurfaceAreamethod within Rectangle and Ellipserequires a publicaccess modifier.B. The calculateSurfaceAreamethod within Cylinder must be declared default.C. Cylinderis not properly calling the Rectangle and Ellipseinterfaces' calculateSurfaceArea methods.D. Cylinderrequires an implementation of calculateSurfaceAreawith two parameters.

Answer: C

 

NEW QUESTION 45
Given:

What is the result?

A. nothingB. A java.lang.IllegalArgumentException is thrown.C. 0D. It fails to compile.E. 1

Answer: D

Explanation:

 

NEW QUESTION 46
Given the code fragment:

You must make the countvariable thread safe.
Which two modifications meet your requirement? (Choose two.)

A. replace line 1 with private volatile int count = 0;B. replace line 1 with private AtomicInteger count = new AtomicInteger(0);and replace line 3 with test.count.incrementAndGet();C. replace line 3 with
synchronized(test.count) {
test.count++;
}D. replace line 3 with
synchronized(test) {
test.count++;
}E. replace line 2 with public static synchronized void main(String[] args) {

Answer: B,C

Explanation:
Explanation/Reference: https://stackoverflow.com/questions/15852123/java-thread-safe-counter/15852164

 

NEW QUESTION 47
......

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