State Street Corporation Performance Analyst Interview Questions and Answers

Java 8 introduced several new features including lambda expressions, streams, and default methods.

• Lambda expressions allow for functional programming and concise code.

• Streams provide a way to process collections of data in a parallel and functional manner.

• Default methods allow for adding new functionality to interfaces without breaking existing implementations.

• Method references provide a way to refer to methods without...read more

Customised immutable java class can be written by declaring all fields as final and not providing any setters.

• Declare all fields as final

• Do not provide any setters

• Provide a constructor to initialize all fields

• Override equals() and hashCode() methods

• Make the class final

The king can move only towards the corner and not diagonally. How many ways can a king go from one end of the chessboard to the diagonally opposite square?

• The king can only move towards the corner, so there are limited options for each move

• The total number of moves required to reach the opposite corner is 14

• Using combinatorics, the total number of ways the king can reach the opposite corner is 3432

I want to join GS because of their reputation for excellence and the opportunity to work on challenging projects.

• GS is known for its prestigious reputation in the financial industry

• I am attracted to the opportunity to work on complex and challenging projects

• I admire GS's commitment to innovation and cutting-edge technology

• I believe GS will provide me with valuable learning and growth opportunities

Find max path from bottom left to top right in a matrix using only up and right steps.

• Start from bottom left corner and move towards top right corner.

• At each step, choose the maximum value between the cell above and the cell to the right.

• Keep track of the sum of values in the chosen path.

• The final sum is the maximum possible sum of values in a path from bottom left to top right.

The most likely number to occur as the final sum is 100.

• The sum of the outcomes of the dice rolls will keep increasing until it reaches or exceeds 100.

• Since the dice have equal probabilities for each outcome, the sum will have a higher chance of reaching 100.

• The probability of rolling a sum greater than 100 decreases as the sum gets larger.

Finding probability of point (1,0) lying in longest cut of three random points on circle of radius 1 centered at (0,0)

• The longest cut will be the one that spans the smallest angle between two of the three points

• The probability can be found by calculating the area of the region where the longest cut includes point (1,0)

• This can be done by finding the angle between (1,0) and the two other points and using trigonometry to...read more