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Count the number of times each character is repeated in a given string.
Iterate through the string and store the count of each character in a hashmap.
Print the count of each character from the hashmap.
To store an array in a list, convert the array to a list data structure.
Convert the array to a list using a list constructor or list comprehension.
Example: array = ['apple', 'banana', 'cherry'] -> list = list(array)
Example: list = [item for item in array]
Apache POI is a Java library for reading and writing Microsoft Office documents.
Create a FileInputStream object to read the file
Create an XSSFWorkbook object using the FileInputStream
Get the desired sheet from the workbook using getSheetAt() or getSheet() method
Iterate through rows and cells to read the data
Top trending discussions
I applied via Referral and was interviewed before Sep 2021. There were 2 interview rounds.
Moderate difficult with business reasoning
I applied via Campus Placement and was interviewed in Feb 2023. There were 2 interview rounds.
Tuples are immutable sequences of elements. A string can be converted to a tuple using the tuple() function.
Tuples are similar to lists but are immutable
Elements of a tuple are enclosed in parentheses ()
A string can be converted to a tuple using the tuple() function
Each character in the string becomes an element in the tuple
Left join is a type of join operation in SQL that returns all the rows from the left table and matching rows from the right table.
Left join is performed using the 'left join' keyword in SQL
In Python, left join can be performed using the 'merge' function from the pandas library
Syntax: pd.merge(left_dataframe, right_dataframe, how='left', on='key_column')
Example: pd.merge(df1, df2, how='left', on='id')
On python and sql coding.they ask simple to complex questions
I applied via Referral and was interviewed before May 2023. There were 3 interview rounds.
There were 3 rounds for data science consultant position at Equifax. 1st round consists of Python and SQL questions and also in this round they have tested analytical thinking as well.
In 2nd round they have asked me questions from my resume and asked me to explain the projects which I have worked on in previous company. In this round they have asked me pandas related questions and asked me write code.
I applied via Naukri.com and was interviewed before Mar 2023. There was 1 interview round.
My favorite topic is artificial intelligence and its impact on society.
AI has revolutionized various industries such as healthcare, finance, and transportation
Ethical considerations surrounding AI development and deployment are crucial
AI has the potential to both improve and disrupt society in significant ways
I add value to the company by leveraging my skills and experience to drive growth, improve efficiency, and enhance overall performance.
Implementing cost-saving initiatives
Developing innovative solutions to challenges
Improving processes and workflows
Increasing revenue through strategic partnerships
Enhancing customer satisfaction and retention
I applied via Referral and was interviewed in Jul 2023. There were 2 interview rounds.
I applied via Naukri.com and was interviewed before Dec 2021. There were 4 interview rounds.
based on 2 interviews
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