HP Computing and Printing Systems Software Engineer Level 1 Interview Questions and Answers

Q1. What is the implementation of Merge Sort in Java?
Ans. 
Merge Sort is a divide and conquer algorithm that divides the input array into two halves, recursively sorts them, and then merges the sorted halves.
• Divide the input array into two halves

• Recursively sort the two halves

• Merge the sorted halves back together
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Q2. What is the implementation of the Quick Sort algorithm in Java?
Ans. 
Quick Sort is a popular sorting algorithm that uses a divide-and-conquer approach to sort elements in an array.
• Choose a pivot element from the array.

• Partition the array into two sub-arrays: elements less than the pivot and elements greater than the pivot.

• Recursively apply the same process to the sub-arrays.

• Combine the sorted sub-arrays to get the final sorted array.
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Q1. Design tinyurl system design
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Asked to write a bank application - which includes adding,removing,transferring of money

30 question -30 min,topics - profit or loss , time work distance ,time speed ,upstreaam downstream percentage ,probability

1.30
Basic profit/loss,percentages questions

Q1. 1 hr Asked about closures, hoisting, map, hash
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Q2. Closures and scopes
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Q3. Dsa 2 sum problem
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Q4. Projects and basicjs
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Q1. Basic related to location, timings
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Easy aptitude, 30 min with 20 question

Online test which consists of java, angular, micro services related questions

Q1. Difference between static and default methods
Ans. 
Static methods belong to the class itself, while default methods are part of an interface in Java.
• Static methods can be called without creating an instance of the class, while default methods are used to provide a default implementation in interfaces.

• Static methods are defined using the 'static' keyword, while default methods are defined using the 'default' keyword in Java.

• Static methods cannot be overridden in subclas...read more
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Encapsulation, abstraction, interface

Q1. Encapsulation constructor method overloading
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Q2. Interface abstracts
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Q1. Why chose this company
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Q2. Why should i hire you
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Q3. How much salary you are expecting
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