Apexon Interview Questions, Process, and Tips

Q1. String code related questions
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Q2. Singleton Design pattern
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General questions asked

Q1. Basic tech questions
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Q2. Some codenasked
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Q1. General info asked
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Q1. As a fresher, Explain OOPS, Difference between Abstraction and Interface,
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Q2. How can we handle Exception in java?
Ans. 
Exceptions in Java can be handled using try-catch blocks and throwing exceptions.
• Use try-catch blocks to handle exceptions in Java.

• Catch specific exceptions using multiple catch blocks.

• Use finally block to execute code regardless of exception.

• Throw custom exceptions using throw keyword.

• Use throws keyword in method signature to declare exceptions that can be thrown.
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Q3. SQL Queries asked like 2nd highest salary of Employee
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Q1. Introduce yourself
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Q2. Hobbies and where you want to see you in 5 Years.
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Q1. Let input = [1,2,3,4,5] n = 1; output = [5,1,2,3,4]
Ans. 
Rotate array to the right by n positions
• Create a new array with the same length as input

• Copy elements from input starting at index (n % input.length) to the end to the new array

• Copy elements from input starting at index 0 to (n % input.length - 1) to the new array
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