UST SDE (Software Development Engineer) Interview Questions, Process, and Tips

Very easy

Q1. How to find length , freq of each char and list of unique characters of a string
Ans. 
To find length, frequency of each character and list of unique characters of a string.
• Iterate through the string and count the frequency of each character using a hash table.

• Create a list of unique characters by iterating through the hash table.

• Calculate the length of the string using the built-in length function.

• Return the frequency, length and list of unique characters as an array of strings.
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Q2. How to check wheather a string is palindrome or not?
Ans. 
To check if a string is palindrome or not.
• Compare the first and last characters of the string and continue towards the middle until all characters have been compared.

• If all characters match, the string is a palindrome.

• If any characters do not match, the string is not a palindrome.
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Q1. Run time polymorphism code
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Q2. Linked list code
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Q3. Deep copy shallow copy differences
Ans. 
Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
• Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

• Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...read more
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Q1. More deep questions about polymorphism code
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Q2. Code for interchange of strings without strcpy
Ans. 
Use a loop to swap characters of two strings without using strcpy function.
• Create two arrays of characters to store the strings

• Use a loop to iterate through each character of the strings and swap them

• Ensure to handle cases where strings have different lengths
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Q1. Explain over all experience
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Q2. Asked question on Core and advance java topic
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Q1. Some advance topic of Java
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Q2. DSA
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Q1. Salary expectation
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Q2. Relocation
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