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What is the difference between DAO and Repository patterns?
What is the difference between Data Access Objects (DAO) and Repository patterns? I am developing an application using Enterprise Java Beans (EJB3), Hibernate ORM as infrastructure, and Domain-Driven Design (DDD) and Test-Driven Development (TDD) as design techniques.
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How is an overloaded method chosen when a parameter is the literal null value?
I came across this question in a quiz,
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What is Java String interning?
What is String Interning in Java, when I should use it, and why ?
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What is the point of noreturn?
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The noreturn attribute is supposed to be used for functions that don't return to the caller. That doesn't mean void functions (which do return to the caller - they just don't return a value), but functions where the control flow will not return to ...
Is a Java hashmap search really O(1)?
...O re Java hashmaps and their O(1) lookup time. Can someone explain why this is so? Unless these hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
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What's the canonical way to check for type in Python?
What is the best way to check whether a given object is of a given type? How about checking whether the object inherits from a given type?
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What is the difference between public, protected, package-private and private in Java?
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edited Jul 31 '19 at 5:52
Istiaque Hossain
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How to declare global variables in Android?
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I wrote this answer back in '09 when Android was relatively new, and there were many not well established areas in Android development. I have added a long addendum at the bottom of this post, addressing some criticism, and detailing a...
How to check whether a string is Base64 encoded or not
...decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
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What is the difference between JVM, JDK, JRE & OpenJDK?
What is the difference between JVM , JDK , JRE & OpenJDK ?
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