



When multiple threads access the same object through different reference variables, what mechanisms are needed to ensure thread safety?
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what is reference variable in java Informational
- Be mindful of the scope of reference variables to control object lifetimes.
- When you create a Thread object, you assign it to a reference variable. Why?
- Describe the role of reference variables in implementing design patterns like Observer or Decorator.
- How does Java's garbage collection help prevent memory leaks that can occur with dangling pointers in other languages?
- How can you check the runtime type of an object referenced by a reference variable in Java?
- What are some common memory leak scenarios in Java that are related to holding on to unnecessary object references?
- How do reference variables relate to working with threads in Java?
- Can you assign a lambda expression or a method reference to a reference variable of a functional interface type?
- How do reference variables work in the context of Java EE technologies like servlets and EJBs?
- When should you be mindful of excessive object creation and the impact on garbage collection due to numerous reference variables?
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