What are good interview questions for Java developers?
Career Talk Work & Career 2 years ago
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Best Answer
2 years ago
Some questions for JAVA developers - Which is the superclass of all classes? Differentiate between J2SDK 1.5 and J2SDK 5.0? What are wrapper classes? What is the ThreadLocal class? How and why would you use it? What is the volatile keyword? How and why would you use it? What is runtime polymorphism or dynamic method dispatch? What is the number of bits used to represent ASCII, Unicode, the UTF-16, and the UTF-8 characters? Is it possible to import same package or class twice? Will the JVM load the package twice at runtime? What is the difference between System.out, System.err, and System.in? What is the Java Classloader? List and explain the purpose of the three types of class loaders? What are the differences between Heap and Stack Memory? What are the differences between Get and Post methods? How do cookies work in Servlets?