IBM Java Developer Interview Questions, Process, and Tips

Q1. 1. Abstraction vs Inheritance 2. What is Garbage collector? 3. What is class loader? 4. Spring security 5. Scopes of bean 6. Wait , notify and notify all 7. Class level vs object level local 8. Arraylist v...read more
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Java interview questions covering topics like abstraction, inheritance, garbage collector, class loader, Spring security, bean scopes, wait-notify, class vs object level local, ArrayList vs LinkedList, Singleton class, and RestController vs Controller.
• Abstraction focuses on hiding implementation details while inheritance allows a class to inherit properties and methods from another class.

• Garbage collector is a program ...read more
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Q2. 11. Qualifier 12. Deadlock 13. What is multi threading? 14. Lock vs Synchronisation 15. Checked vs unchecked exceptions 16. Diamond problem solution in java 8 17. Microservices advantages and disadvantag...read more
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Q1. Why to leave wipro ? Expected salary ? Desired location? Strength and weakness ? How you contribute being alone ?
Ans. 
I am leaving Wipro to explore new opportunities and challenges.
• Exploring new opportunities and challenges

• Seeking career growth

• Looking for a change in work environment

• Wanting to work with new technologies or industries

• Seeking better work-life balance
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Q1. Difference between hashmap and hash table
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HashMap is non-synchronized and allows null values, while HashTable is synchronized and does not allow null values.
• HashMap is non-synchronized, meaning it is not thread-safe, while HashTable is synchronized and thread-safe.

• HashMap allows null values for both keys and values, while HashTable does not allow null keys or values.

• HashMap is generally preferred for non-thread-safe applications, while HashTable is used in mul
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Q2. Static block related questions
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Q3. Arraylist and linkedlist question
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Hacker rank 2 Questions to solve

Q1. Find the middle node in linked list and remove it
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Q2. Stream API Questions
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Q1. Give three date functions?
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Three date functions in Java are getDate(), getMonth(), and getYear().
• getDate() - Returns the day of the month represented by this Date object.

• getMonth() - Returns the month represented by this Date object.

• getYear() - Returns the year represented by this Date object.
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Q1. How is your work divided?
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Q1. Expected compensation
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