Synechron Interview Questions, Process, and Tips for Freshers

A palindrome program in Java checks if a given string reads the same forwards and backwards.

• Create a function that takes a string input

• Use a loop to compare characters from both ends of the string

• Return true if the string is a palindrome, false otherwise

Diamond problem in Java occurs when a class inherits from two classes that have a common ancestor, resulting in ambiguity.

• Diamond problem arises in multiple inheritance scenarios in Java.

• It occurs when a class inherits from two classes that have a common ancestor.

• To resolve the diamond problem, Java does not support multiple inheritance through classes, but it can be achieved using interfaces.

• Example: Class A and Class...read more

Iterate through the list and find pairs of numbers that sum up to 6

• Iterate through the list and check if the current number + any other number in the list equals 6

• Store the pairs of numbers that sum up to 6 in a separate list

• Return the list of pairs

A cursor is a database object used to retrieve and manipulate data in a database management system.

• A cursor allows for sequential processing of query results one row at a time.

• It can be used to update or delete specific rows in a result set.

• Cursors are commonly used in stored procedures and triggers.

• Example: DECLARE cursor_name CURSOR FOR SELECT column1, column2 FROM table_name;

Query using listagg function to concatenate values into a single string

• Use the listagg function followed by the column name and delimiter in parentheses

• Specify the order by clause if needed

• Can be used in SQL queries to display aggregated data

Program to reverse a string

• Create a char array from the input string

• Use two pointers to swap characters from start and end

• Continue swapping until pointers meet in the middle

A 408 status in API testing in Postman is received when the server times out while waiting for a request.

• 408 status code indicates that the server did not receive a complete request within the time that it was prepared to wait.

• This can happen if the client takes too long to send the request or if the server is overloaded.

• It is important to adjust timeout settings in Postman to avoid receiving 408 status codes.

• Example: ...read more