Nail Your Java Interview (2018)

Review critical Java concepts—and commonly-asked interview questions—to ensure that you approach your Java interviews with confidence.

Introduction

• The secret to nailing your Java interview
• Understand types of interview questions
• Get ready for your technical interview
• How to use CoderPad

1. Answering Java-Specific Questions

• What's the Java Virtual Machine?
• What's the JDK and JRE?
• What are classes, instances, and constructors?
• What's the difference between static and non-static methods?
• How is scope used in Java?
• How do you access modifiers restrict scope?

2. Leveraging New Java Features

• Understand the impact of Jigsaw
• Use optionals to avoid NullPointerExceptions
• Create Lambdas to pass functionality as data
• Use the Streams API to process collections
• Discuss the pros and cons of local variable type inference
• Leverage new switch expressions

3. Solving Technical Interview Questions: String Manipulation

• Concatenate strings with different methods
• Normalize string input
• Access data from strings
• Apply string functions in technical interviews
• Understand string equality
• Solution: Developing a Palindrome Checker
• Solution: Counting with String Manipulation

4. Solving Technical Interview Questions: Arrays and Linked Lists

• Review arrays for technical interviews
• Solution: Maximum Product of Two Numbers
• Mastering linked lists for whiteboard coding interviews
• Solution: Delete the Middle of a Linked List

5. Solving Technical Interview Questions: Stacks, Queues, and Hash-Based Structures

• Leveraging stacks as a data structure
• Using queues in technical interviews
• Mastering hash-based structures
• Solution: Generate Binary Numbers
• Solution: Matching Parentheses
• Solution: Find Most Repeated Word

6. Solving Technical Interview Questions: Abstraction, Encapsulation, Inheritance, and Polymorphism

• Mastering abstraction for technical interviews
• Add encapsulation to your programs to impress interviewers
• Leveraging inheritance in your technical interview solutions
• Use polymorphism to reduce complexity in coding interviews
• Mastering polymorphism with a deeper look at Java

Conclusion

• Good luck in your interview