1z0-809 Exam - Question 92

Question

Given:What is the result?

Examice · Accepted Answer

In the provided Java code, the `Job` constructor initializes the `cost` variable with `null`. The `getCost` method is defined to return an `int`, which is a primitive type and cannot be `null`. When the `getCost` method is invoked on the `Job` object, the attempt to unbox the `null` value into an `int` will cause a `NullPointerException` at runtime. Therefore, the result is that a `NullPointerException` is thrown.

pul26 · Answer

Answer is B

Chiraj · Answer

The answer is B tested.

WilsonKKerll · Answer

NullPointerExcepiton

JME_CHG · Answer

When I change 
int getCost()
to
Integer getCost()
I thought DoubleSupplier line would fail compilation but it continued to work, anyone know why?

Svetleto13 · Answer

B,tested.If we replace Integer(object) with int(primitive) answer is D.

Tarik2190 · Answer

Answer is B,

class Job {
String name;
Integer cost;

Job(String name, Integer cost) {
    this.name = name;
    this.cost = cost;
}

public String getName() {
        return name;
    }

public int getCost() {
        return cost;
    }
}

public class Test {
    public static void main (String[] args) throws InterruptedException, ExecutionException {

Job j1 = new Job("IT", null);
    DoubleSupplier dS = j1::getCost;
        System.out.println(j1.getName() + ": " + dS.getAsDouble());

}
}

steefaand · Answer

Answer is B, tested, NPE happens since Supplier provides null.

asdfjhfgjuaDCV · Answer

B is the answer

1z0-809 Exam - Question 92

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