PayCraft Solutions Java Developer Interview Questions and Answers

Questions on string and arrays both are moderate level questions on hacherrank type for 20 marks

Q1. Constructor chaining
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Q2. Hasmap and treemap
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There were 5 questions and we need to solve 4 questions in java. Mostly Array and string based.

Their are 30 questions which one has to done in 30 mins

Q1. Q1) About the project you have done
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Q2. Q2) some technical questions related to core Java
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Q1. Oops Concepts ,Absrtraction,Polymorphism
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Q1. What is the diffrence between == and .equals() in java?
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Q2. == : Compares refrences (memory addresses) of objects. .equals() : Compares to content (value) of objects.
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Q.1 Pattern
1
*2*
**3**
Q. 2
write code to get sub array with max sum from given array.

Q1. Introduction Project Deatails Oops Concept Collection Exception Handling Abstract Class Functional Interface Spring Framework
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Q1. Write a short java program to check if a number is prime.
Ans. 
Java program to check if a number is prime
• Create a function that takes an integer as input

• Check if the number is less than 2, return false

• Iterate from 2 to the square root of the number, check for divisibility

• If the number is divisible by any number, return false

• Otherwise, return true
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Q2. A prime number is a number greater than 1.....etc
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A prime number is a number greater than 1 that can only be divided by 1 and itself.
• Prime numbers are integers greater than 1

• They have only two factors: 1 and the number itself

• Examples of prime numbers: 2, 3, 5, 7, 11, 13
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Basic aptitude round

Q1. 1.Java, OOPs concept 2. HTML,CSS,JS 3.DSA
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Q2. Explain your project
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Q1. Java Coding questions
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