Meeting Day: 04 September 2025
Experience Level: 5– 8 Years
Setting: Virtual– Technical Round
Duty: Senior Java Backend Programmer– Springtime Boot & & Microservices
Java
1 What is the difference in between strong, weak, soft, and phantom references in Java?
2 Just how do text obstructs presented in Java 15 enhance code readability?
3 What are sealed courses in Java 17, and just how do they contrast to abstract courses?
4 How do you execute thread safety without using synchronized?
5 What are button expressions, and just how do they simplify Java code?
6 Describe the advantages of making use of CompletableFuture over standard threads.
7 What is the purpose of var in local variable kind reasoning?
8 Exactly how does Java’s garbage man handle heap memory?
9 Clarify the difference between flatMap() and map() in Streams with an instance.
10 How do digital strings in Java 21 assist with scalability?