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Johnson Controls
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I applied via Walk-in and was interviewed in Dec 2023. There was 1 interview round.
Reverse a linked list by changing the pointers direction
Iterate through the linked list and change the direction of pointers
Use three pointers - prev, current, next to reverse the list
Update the head pointer to point to the new first node
String manipulation of java based questions
const and volatile are keywords in C/C++ used to define constants and variables that can change unexpectedly.
const keyword is used to define constants that cannot be changed during program execution
volatile keyword is used to indicate that a variable may be changed unexpectedly, often by hardware or other threads
const volatile is used when a variable is both constant and volatile, meaning it cannot be changed and may b
What people are saying about Johnson Controls
I applied via Naukri.com and was interviewed before Oct 2023. There were 2 interview rounds.
I have strong skills in programming languages such as Java, Python, and C++, as well as experience with database management and software development methodologies.
Proficient in Java, Python, and C++ programming languages
Experience with database management systems like MySQL and MongoDB
Familiarity with software development methodologies such as Agile and Scrum
As a Software Engineer, my current role involves designing, developing, testing, and maintaining software applications.
Designing software solutions based on client requirements
Developing code using programming languages like Java, Python, or C++
Testing software to ensure functionality and performance
Maintaining and updating existing software applications
Collaborating with team members to troubleshoot and resolve issues
...
Johnson Controls interview questions for designations
I applied via Naukri.com and was interviewed before Mar 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in Oct 2021. There were 4 interview rounds.
I was interviewed in Aug 2017.
C is a procedural programming language while Java is an object-oriented programming language.
C is a low-level language while Java is a high-level language.
C requires manual memory management while Java has automatic memory management.
C is platform-dependent while Java is platform-independent.
C supports pointers while Java does not.
C has a simpler syntax compared to Java.
final, finally, and finalize are keywords in Java with different meanings.
final is a keyword used to declare a constant value, a variable that cannot be modified.
finally is a block used in exception handling to ensure a piece of code is always executed, whether an exception is thrown or not.
finalize is a method in the Object class that is called by the garbage collector before an object is destroyed.
final and finally a...
posted on 16 Jan 2025
I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in Dec 2024. There were 2 interview rounds.
3 coding questions were given and all should have to be passed for the next round
I applied via Referral and was interviewed in Sep 2024. There were 3 interview rounds.
OOP concepts are fundamental principles in object-oriented programming that help in organizing and designing code.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation detai...
Vectors are dynamic arrays that can change in size, while arrays have a fixed size.
Vectors can grow or shrink in size dynamically, while arrays have a fixed size.
Vectors can be resized using functions like push_back() and pop_back(), while arrays cannot.
Vectors are part of the C++ Standard Template Library (STL), while arrays are a fundamental data structure.
Example: vector
based on 5 interviews
2 Interview rounds
based on 36 reviews
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