Mastering Java: The Ultimate Quiz for 'Thinking in Java'

In a comparison using the == operator, when comparing two Integer objects containing the same value, what will be the result?

1. true

2. false

3. Compilation error

4. Runtime exception

The correct answer is: false

When comparing two Integer objects using the == operator, it will check if the objects are pointing to the same memory location and not just their values. So even if the two Integer objects have the same value, the result will be false because they are still considered separate objects. This is different from using .equals() method which compares the actual values of the objects. Options C and D are incorrect because they are related to errors or exceptions, which are not relevant in this scenario. Option A may seem like a possible answer, but since we are comparing objects and not primitive data types, the result will still be false. Therefore, the correct answer is B.