Blog Archives
1 2

02: 15 key considerations for low latency Java

Extends Writing low latency applications in Java interview Q&As. If the job description says “low latency” application, then be prepared. Even if “low latency” … Read more ›...



10: 8 Java Maps & Caching Data in Java Interview Q&As

Q1. What is the purpose of a Map interface in Java collection API? A1. A map is a set of associations between pairs of objects. … Read more ›...



4 FAQ Performance tuning in Java interview Q&As

Q1. In your experience, what are some of the major causes of performance bottlenecks in Java applications? A1. Cause #1: The JVM spends more time performing garbage collection due to...



6 Key considerations in processing large files in Java

Q1. What are the key considerations in processing large files? A1. Before jumping into coding, get the requirements. #1 Trade-offs among CPU, Memory Usage &… Read more ›...



8+ JMeter performance testing interview Q&As

Performance testing is an important process of any software development. You can bring this up yourself to many open-ended questions like — … Read more ›...



9 Java Garbage Collection interview questions & answers – part 1

Java Garbage Collection interview questions & answers to ascertain your depth of Java knowledge in building industry strength Java applications. Determining optimal Garbage Collection (GC) settings is critical to achieve high throughput &

Read more ›



9 Java Garbage Collection interview questions & answers – part 2

Extends Q1 & Q2 of Java GC interview Q&As covering GC basics. Let’s cover more in-depth GC interview Q&As. Q3. What is the difference between a weak reference and a...



javap, jps, jmap, and jvisualvm tutorial – analyzing the heap histogram

Q1. Is there anything wrong with the code snippet shown below?

A1. The above code creates too many “Integer” objects due to auto boxing.

Read more ›



JMeter for performance testing REST services with BeanShell

This post extends 8 JMeter Performance testing Interview Q&As to cover JSON HTTP post. Now a days, a single page interactive web sites are very popular, and they post JSON...



Monitoring/Profiling Java applications interview Q&A

Q1 How will you go about monitoring your Java application for potential performance or memory issues? A1 1. Visual VM for monitoring Java memory,… Read more ›...



1 2

300+ Java Developer Interview Q&As

800+ Java Interview Q&As

Top