Exceptions · interview question
Consider the following code snippet. What will happen if the input is null?
Multiple choiceMediumchapter-6-curatedpremiumexceptionsexceptions-basics
public void processOrder(String order) {
System.out.println(order.toUpperCase());
}Answer and explanation
Correct answer
B. A NullPointerException will be thrown.
Why
If the input is null, attempting to call a method on it will result in a NullPointerException, as null references cannot be dereferenced.
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