Top 10 Interview Questions for Java Developers
JDK, JRE, and JVM
: JDK is for Java development, JRE is for running Java applications, and JVM interprets Java bytecode.
OOP Principles in Java
: Java implements OOP principles like encapsulation, inheritance, abstraction, and polymorphism.
Java Access Modifiers
: Access modifiers control visibility; examples include public, private, protected, and default (no modifier).
: static is used for class-level members and doesn't require an instance of the class for access.
final, finally, and finalize
: final is for constants, finally is for code blocks, and finalize is a method for object cleanup.
Exception Handling in Java
: Java uses try-catch blocks to handle exceptions and provides throw, throws, and finally for advanced handling.
Java Memory Management
: Discuss heap and stack memory, and how Java's garbage collector manages memory.
equals() vs. ==
: equals() compares object content, while == checks reference equality.
Java Design Patterns
: Design patterns are reusable solutions; for instance, Singleton ensures a class has only one instance.
Multithreading in Java
: Java supports multithreading using classes like Thread and keywords like synchronized, with potential issues including deadlock and race conditions.
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