Java Brain Teasers @Java_Hokage

Let’s change the world one build at a time. I post Java questions. #JavaHokageQuestions National Capital Region Joined October 2018

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Sarvesh (Bhatt) Kumar @sarveshbhatta

7 years ago

My tips for JAVA GC @java @MicroservicesTT @javacodegeeks @java_Hokage @java_Champions @Oraclejavamag @javaPerformance @javaTune techtalkwithbhatt.com/2019/07/28/tip…

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Java Brain Teasers @Java_Hokage

7 years ago

14. Callable and Supplier are functional interfaces. Both are quite similar since they have an abstract, no-argument method that just supply a value. One of this throws an Exception. Which one is it? #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

2019 Java Hokage Questions Thread #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

Fields in an interface implicitly static and final since interface can't have behavior or state. Interfaces are intended to specify an interaction contract only and not implementation details. #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

13. Interface fields are implicitly ____? #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

12. You can have a top-level static class. Example (inside StaticClass.java): public static StaticClass {} class NestedClass {} #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

Java however supports: 1: Multiple inheritance of implementation, ability to inherit method definitions from multiple classes 2: Multiple inheritance of type, ability of a class to implement more than one interface. docs.oracle.com/javase/tutoria… #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

. . . What if methods or constructors from different superclasses instantiate the same field? Which method or constructor will take precedence? Because interfaces do not contain fields, you do not have to worry about problems that result from multiple inheritance of state.

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Java Brain Teasers @Java_Hokage

7 years ago

11. In Java, you can extend multiple classes since Java supports multiple inheritance of state. #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

blog.google/products/andro…

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Java Brain Teasers @Java_Hokage

7 years ago

If you run this program, it will print “pass-by-value” proving Java is pass-by-value indeed. #Java #JavaHokageQuestions

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Java Brain Teasers @Java_Hokage

7 years ago

Since Java is pass-by-value, it creates a copy of that reference, thus it will now operate on the new reference variable and not the original. Any assignment on the new reference variable will not affect the original. #Java #JavaHokageQuestions