Core Java · interview question
Consider the following classes. What will be the output of 'new PremiumService().getInfo();'?
Multiple choiceHardchapter-5-curatedpremiumcore-javacode-reading-with-related-types
class Service { String getInfo() { return "Service Information"; } }
class PremiumService extends Service { @Override String getInfo() { return "Premium Service Information"; } }Answer and explanation
Correct answer
D. Premium Service Information
Why
The 'getInfo' method in 'PremiumService' overrides the method from 'Service', so calling 'getInfo' on an instance of 'PremiumService' will execute the overridden method, outputting 'Premium Service Information'.
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