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Java > Learn Java > What are the trickiest Java questions?
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What are the trickiest Java questions?

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My teaching experience 12 years

Tricky Java questions often involve nuances of the language, especially in areas like inheritance, polymorphism, threading, and exception handling. Here are a few examples: 1. Explain the difference between `==` and `equals()` in Java. 2. What is the difference between `HashMap` and `HashTable`? 3....
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Tricky Java questions often involve nuances of the language, especially in areas like inheritance, polymorphism, threading, and exception handling. Here are a few examples: 1. Explain the difference between `==` and `equals()` in Java. 2. What is the difference between `HashMap` and `HashTable`? 3. How does Java handle multiple inheritance? 4. Explain the concept of method overloading and method overriding in Java. 5. Discuss the differences between `ArrayList` and `LinkedList`. 6. Explain the purpose of the `volatile` keyword in Java. 7. Describe the Java memory model and how it relates to multi-threading. 8. Discuss the difference between checked and unchecked exceptions in Java. 9. What is the use of the `transient` keyword in Java? 10. Explain the significance of the `finalize()` method in Java. These questions often require a deep understanding of Java concepts and practical experience in programming with the language. read less
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Explain the difference between deep copy and shallow copy in Java, and provide examples of scenarios where each would be appropriate. Describe the principles of multithreading in Java and discuss how you would implement thread safety in a concurrent application.
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The trickest question i have came though is, Is java really is platform independent, as they claim. if yes, why they need JVM support to run java program. is it the true platform indepency? :-)
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