Persistent Systems Interview Questions, Process, and Tips

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Amazinf coding in java and kther langaugaes as

Q1. How are you ?
Ans. 
I am doing well, thank you for asking.
• I am feeling good both physically and mentally.

• I have been enjoying my work and personal life.

• Overall, I am in a positive state of mind.
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Q2. Why do you want ?
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Tell me about previous project briefly

The KMP algorithm was asked in my coding round.

Q1. Core java ,java 8 coding questions,multiarray coding questions
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Q2. Microservices, securities, rabbitmq,cloud
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Q1. Compensation joining
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Q1. Java program string and array related
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Q2. Core java questions
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Q1. Java program for array
Ans. 
Java program to create and manipulate an array of strings
• Declare and initialize an array of strings: String[] arrayName = new String[] {"string1", "string2", "string3"};

• Access elements in the array using index: String element = arrayName[index];

• Modify elements in the array: arrayName[index] = "newString";

• Iterate through the array using a loop: for(String element : arrayName) { // do something with element }
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Q2. Java program for string
Ans. 
Java program to manipulate an array of strings
• Use a for loop to iterate through the array of strings

• Use string methods like substring, indexOf, or replace to manipulate the strings

• Use StringBuilder for efficient string manipulation
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Q1. What is oops concepts?
Ans. 
Object-oriented programming concepts that focus on objects and classes to organize code and improve reusability and maintainability.
• 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 im...read more
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Q2. What is garbage collection ?
Ans. 
Garbage collection is a process in programming where the system automatically reclaims memory occupied by objects that are no longer in use.
• Garbage collection helps in managing memory efficiently by automatically deallocating memory that is no longer needed.

• It reduces the risk of memory leaks and helps in preventing bugs related to manual memory management.

• Examples of programming languages with garbage collection inclu
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Q3. Encapsulation, polymorphism
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