Core Java preguntas y respuestas de entrevista
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Pregunta 226. What are order of precedence and associativity, and how are they used?
Order of precedence determines the order in which operators are evaluated in expressions. Associatity determines whether an expression is evaluated left-to-right or right-to-left
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Pregunta 227. What modifiers can be used with a local inner class?
A local inner class may be final or abstract.
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Pregunta 228. Why are the methods of the Math class static?
So they can be invoked as if they are a mathematical code library.
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Pregunta 229. When you think about optimization, what is the best way to findout the time/memory consuming process?
Using profiler
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Pregunta 230. What is nested class?
If all the methods of a inner class is static then it is a nested class.
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Lo mas util segun los usuarios:
- How could Java classes direct program messages to the system console, but error messages, say to a file?
- What are the differences between an interface and an abstract class?
- Why would you use a synchronized block vs. synchronized method?
- How can you force garbage collection?
- What are the differences between the methods sleep() and wait()?