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Java > Learn Java > What are the most common Java interview questions?
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What are the most common Java interview questions?

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Some common Java interview questions include: What is the difference between == and .equals() in Java? Explain the difference between final, finally, and finalize in Java. What is the Java Virtual Machine (JVM) and how does it work? Describe the concept of multithreading in Java and how it's achieved. What...
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Some common Java interview questions include: What is the difference between == and .equals() in Java? Explain the difference between final, finally, and finalize in Java. What is the Java Virtual Machine (JVM) and how does it work? Describe the concept of multithreading in Java and how it's achieved. What are the access modifiers in Java, and what do they mean? Explain the difference between abstract classes and interfaces. What is the purpose of the static keyword in Java? How does exception handling work in Java, and what are the key components? Discuss the differences between ArrayList and LinkedList in Java. Explain the principles of Object-Oriented Programming (OOP) and how they apply in Java. Remember, interview questions can vary, so it's essential to have a solid understanding of core Java concepts and be prepared to discuss your practical experience with Java development. read less
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IT Corporate Trainer with 9 years of experience in Edu tech

What is Java?Why is Java a platform independent language?What are the differences between C++ and Java?Why is Java not a pure object oriented language?List the features of the Java Programming language?What do you get in the Java download file?Explain JVM, JRE, and JDK.What is a ClassLoader?What are...
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What is Java?
Why is Java a platform independent language?
What are the differences between C++ and Java?
Why is Java not a pure object oriented language?
List the features of the Java Programming language?
What do you get in the Java download file?
Explain JVM, JRE, and JDK.
What is a ClassLoader?
What are the Memory Allocations available in JavaJava?
What are the differences between Heap and Stack Memory in Java?

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Python trainer believe in practical learning.

Java interview questions often cover core concepts like inheritance, polymorphism, abstraction, and encapsulation. Questions on exception handling, multithreading, and synchronization are common to assess candidate knowledge. Additionally, understanding of Java collections framework—ArrayList,...
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Java interview questions often cover core concepts like inheritance, polymorphism, abstraction, and encapsulation. Questions on exception handling, multithreading, and synchronization are common to assess candidate knowledge. Additionally, understanding of Java collections framework—ArrayList, HashMap, LinkedList—and their usage often comes up.

Expect questions on Java's memory management, including garbage collection, and the differences between stack and heap memory. Interviewers might ask about Java's OOP principles, design patterns, and SOLID principles, assessing the candidate's ability to apply these concepts in real-world scenarios.

For experienced candidates, questions might delve into Java EE technologies like Servlets, JSP, JDBC, Spring framework components, Hibernate, or questions on RESTful APIs and microservices architecture. Problem-solving questions or coding challenges to evaluate algorithmic thinking and coding abilities are also common. Being prepared with practical examples, code snippets, and explanations showcasing expertise in these areas is crucial for Java interviews.

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C language Faculty (online Classes )

What is Java? Why is Java a platform independent language? What are the differences between C++ and Java? Why is Java not a pure object oriented language? List the features of the Java Programming language? What do you get in the Java download file? Explain JVM, JRE, and JDK.
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