Core Java · interview question
Consider the following code. What will be printed to the console?
Multiple choiceHardchapter-7-curatedpremiumcore-javawrapper-types-and-autoboxing
Integer a = new Integer(127);
Integer b = new Integer(127);
System.out.println(a == b);
System.out.println(a.equals(b));Answer and explanation
Correct answer
C. False true
Why
The first comparison uses ==, which checks for reference equality, resulting in false. The second uses equals(), which checks for value equality, resulting in true.
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