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Systenics Solutions Interview Questions and Answers
17 Interview questions
A class is a blueprint for creating objects, and objects are instances of classes. Constructors are special methods used to initialize objects.
Class is a template that defines the properties and behaviors of objects.
Object is an instance of a class that has its own state and behavior.
Constructors are special methods used to initialize objects when they are created.
Example: Class 'Car' defines properties like 'colo...
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same name and parameters as in the superclass.
Method overloading allows a class to have multiple methods with the same name but different parameters.
Method overriding involves redefining a method in a subclass that is already defined in the sup...
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same signature as in the superclass.
Method overloading allows a class to have multiple methods with the same name but different parameters.
Method overriding is when a subclass provides a specific implementation of a method that is already provi...
OOPs stands for Object-Oriented Programming while POPs stands for Procedure-Oriented Programming. Encapsulation is the concept of bundling data and methods that operate on the data into a single unit. Polymorphism refers to the ability of a single function or method to operate on different types of data.
OOPs focuses on objects and classes, allowing for better organization and reusability of code.
POPs focuses on pr...
Abstraction focuses on hiding unnecessary details, while encapsulation involves bundling data and methods together.
Abstraction allows us to focus on essential details and ignore irrelevant information.
Encapsulation helps in data hiding and protecting data integrity by restricting access to certain components.
Abstraction is like a car dashboard showing only necessary information, while encapsulation is like a car e...
Threads in Java allow for concurrent execution of multiple tasks within a single program.
Threads are lightweight sub-processes within a program.
They allow for parallel execution of tasks, improving performance.
Java provides built-in support for creating and managing threads using the Thread class.
Example: Creating a new thread - Thread myThread = new Thread(() -> { // task to be executed });
Example: Starting a thr...
OOPS Concept function
OOPS (Object-Oriented Programming) is a programming paradigm that uses objects to represent and manipulate data.
Functions in OOPS are methods that are defined within a class and can be called to perform specific tasks.
Functions in OOPS encapsulate behavior and can have parameters and return values.
Functions can be public, private, or protected depending on their accessibility.
Inheritance, poly...
Systenics Solutions Interview Experiences
20 interviews found
Anonymous
Basic ques on speed distance
Easy level question based on DSA
(4 Questions)
- Q1. What is contructor
- Ans.
A constructor is a special type of method in a class that is automatically called when an object of that class is created.
Constructors have the same name as the class they belong to
They are used to initialize the object's state
Constructors can have parameters to customize the initialization process
- Q2. What is deadlock
- Ans.
Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
Occurs in multitasking environments
Caused by a circular wait, hold and wait, no preemption, and mutual exclusion
Examples include two processes waiting for each other to release a lock or resource
- Q3. Threads in java
- Ans.
Threads in Java allow for concurrent execution of multiple tasks within a single program.
Threads are lightweight sub-processes within a program.
They allow for parallel execution of tasks, improving performance.
Java provides built-in support for creating and managing threads using the Thread class.
Example: Creating a new thread - Thread myThread = new Thread(() -> { // task to be executed });
Example: Starting a thread -...
- Q4. Diff between string builder an buffer
- Ans.
String Builder is mutable, String Buffer is synchronized.
String Builder is faster as it is not synchronized.
String Buffer is thread-safe, String Builder is not.
String Builder should be used in single-threaded environments, String Buffer in multi-threaded.
Example: StringBuilder sb = new StringBuilder(); StringBuffer buff = new StringBuffer();
(1 Question)
- Q1. Based on Resume
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Aug 2024. There were 3 interview rounds.
Armstrong No, Prime No
(2 Questions)
- Q1. What is Deadlock
- Ans.
Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
Occurs in multitasking environments
Caused by circular wait, hold and wait, no preemption, mutual exclusion
Can be resolved by prevention, avoidance, detection, recovery
- Q2. Abstraction vs Encapsulation
- Ans.
Abstraction focuses on hiding unnecessary details, while encapsulation involves bundling data and methods together.
Abstraction allows us to focus on essential details and ignore irrelevant information.
Encapsulation helps in data hiding and protecting data integrity by restricting access to certain components.
Abstraction is like a car dashboard showing only necessary information, while encapsulation is like a car engine...
(1 Question)
- Q1. Boxing and UnBoxing
Skills evaluated in this interview
(1 Question)
- Q1. What is diif between final,finalize and finally method.
- Ans.
Final is a keyword used to declare a constant, finalize is a method used for cleanup operations, and finally is a block used in exception handling.
Final keyword is used to declare a constant value.
Finalize method is used for cleanup operations before an object is destroyed.
Finally block is used in exception handling to execute code after try/catch blocks.
Patterns questions like hollow diamond etc.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Jul 2024. There was 1 interview round.
Armstrong number
Pattern Printing
Interview Preparation Tips
- Oops and Java basic
I applied via Campus Placement and was interviewed in Mar 2024. There were 2 interview rounds.
1)Spy number
2)Pattern
(5 Questions)
- Q1. Oops concepts(Pillers of oops)
- Q2. What is method overloading and overriding
- Ans.
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same name and parameters as in the superclass.
Method overloading allows a class to have multiple methods with the same name but different parameters.
Method overriding involves redefining a method in a subclass that is already defined in the supercla...
- Q3. What is pointer(Dangling pointer)
- Ans.
A dangling pointer is a pointer that points to a memory location that has been deallocated, leading to undefined behavior.
Dangling pointers can occur when a pointer is not set to NULL after the memory it points to is freed.
Accessing a dangling pointer can result in a crash or unexpected behavior.
Example: int *ptr = new int; delete ptr; // ptr is now a dangling pointer
- Q4. Serialisation and Deserialisation
- Q5. What is class and object,constructors
- Ans.
A class is a blueprint for creating objects, and objects are instances of classes. Constructors are special methods used to initialize objects.
Class is a template that defines the properties and behaviors of objects.
Object is an instance of a class that has its own state and behavior.
Constructors are special methods used to initialize objects when they are created.
Example: Class 'Car' defines properties like 'color' an...
Skills evaluated in this interview
I appeared for an interview in Mar 2024.
1)Spy number
2) Pattern
(2 Questions)
- Q1. Oops concepts(piller of oops)
- Q2. What is method overloading and overriding
- Ans.
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same signature as in the superclass.
Method overloading allows a class to have multiple methods with the same name but different parameters.
Method overriding is when a subclass provides a specific implementation of a method that is already provided b...
I appeared for an interview in Sep 2023.
15 minutes on paper coding questions is given
(4 Questions)
- Q1. Java related question
- Q2. Jdk information on java
- Q3. Java interface in actual coding
- Ans.
Java interfaces are used to define a contract for classes to implement, allowing for polymorphism and loose coupling.
Interfaces in Java are used to define abstract methods that must be implemented by classes that implement the interface.
Interfaces can also contain constants, default methods, and static methods.
Example: interface Animal { void eat(); } class Dog implements Animal { public void eat() { System.out.println...
- Q4. Object oriented programming langauge
(1 Question)
- Q1. Hr round on java
Interview Preparation Tips
Skills evaluated in this interview
Pranav Gurav
Give the string and array related questions
I applied via Campus Placement and was interviewed in Oct 2023. There were 2 interview rounds.
Pen paper simple coding questions
(1 Question)
- Q1. Bubble sort, patterns , OOPs concept
I applied via Walk-in and was interviewed in Oct 2023. There was 1 interview round.
(1 Question)
- Q1. Sum of numbers digits
- Ans.
Calculate the sum of digits in a given number.
Iterate through each digit of the number and add them together.
Use modulo operator to extract each digit.
Convert the number to a string to easily access individual digits.
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