Write program to count frequencyOfChars(String inputStr) ex. abbcddda a:2 b:2 c:1 d:3 Write program to isPowerOf3(int n) ex. 3-true 27-true 30-false Write SQL query of Emp (emp_id, name) Country Sal (emp_id, sal_amt) get the list of employees with highest salary in each country

Question

Write program to count frequencyOfChars(String inputStr) ex. abbcddda a:2 b:2 c:1 d:3 Write program to isPowerOf3(int n) ex. 3->true 27->true 30->false Write SQL query of Emp (emp_id, name) Country Sal (emp_id, sal_amt) get the list of employees with highest salary in each country

Accepted Answer

Programs to count frequency of characters in a string, check if a number is power of 3, and SQL query to get highest salary employees by country.

For frequencyOfChars, use a HashMap to store character counts and iterate through the string.
For isPowerOf3, keep dividing the number by 3 until it becomes 1 or not divisible by 3.
For SQL query, use a subquery to get max salary for each country and join with Emp table.
Example SQL query: SELECT e1.* FROM Emp e1 JOIN (SELECT Country, MAX(sal_amt) AS max_sal FROM Sal GROUP BY Country) e2 ON e1.Country = e2.Country AND e1.sal_amt = e2.max_sal

Write program to count frequencyOfChars(String inputStr) ex. abbcddda a:2 b:2 c:1 d:3 Write program to isPowerOf3(int n) ex. 3->true 27->true 30->false Write SQL query of Emp (emp_id, name) Country Sal (emp_id, sal_amt) get the list of employees with highest salary in each country

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Write program to count frequencyOfChars(String inputStr) ex. abbcddda a:2 b:2 c:1 d:3 Write program to isPowerOf3(int n) ex. 3-&gt;true 27-&gt;true 30-&gt;false Write SQL query of Emp (emp_id, name) Country Sal (emp_id, sal_amt) get the list of employees with highest salary in each country

Top Cybage Senior Software Engineer interview questions & answers

Popular interview questions of Senior Software Engineer

Top HR questions asked in Cybage Senior Software Engineer

Write program to count frequencyOfChars(String inputStr) ex. abbcddda a:2 b:2 c:1 d:3 Write program to isPowerOf3(int n) ex. 3->true 27->true 30->false Write SQL query of Emp (emp_id, name) Country Sal (emp_id, sal_amt) get the list of employees with highest salary in each country