Summer Employee Interview Questions and Answers

The minimum number of weighs to find the odd ball is 4.

• Divide the 10 balls into 3 groups of 3, 3, and 4.

• Compare the weights of the two groups of 3 balls.

• If the weights are equal, the odd ball is in the group of 4.

• If the weights are unequal, the odd ball is in the lighter group of 3.

• Divide the lighter group of 3 balls into individual balls and compare their weights.

• The odd ball will be identified in the 4th weigh.

To reach the center of the island, one can use a boat or any other means to cross the lake.

• Use a boat to reach the island

• Swim across the lake if it's not too far

• If the lake is frozen, walk or skate across the ice

• If there is a bridge or causeway connecting the island, use it to reach the center

Designing an elevator system for a building involves considering factors like capacity, speed, safety, and efficiency.

• Determine the number of floors and the expected traffic flow in the building

• Calculate the required capacity and speed of the elevators

• Consider safety features such as emergency stop buttons, fire-resistant materials, and backup power supply

• Implement efficient algorithms for elevator scheduling to minimize waiting time

• Incorporate user-friendly features like cle...read more

A linked list is a data structure where each element contains a reference to the next element.

• Create a Node class with data and next pointer

• Create a LinkedList class with head pointer

• Implement methods like insert, delete, search, etc.

Java is used over C/C++ when platform independence, ease of use, and security are important.

• Java is platform independent, meaning it can run on any operating system or hardware that has a Java Virtual Machine (JVM). C/C++ code needs to be compiled separately for each platform.

• Java has automatic memory management, reducing the risk of memory leaks and making it easier to write and maintain code. C/C++ requires manual memory management.

• Java has built-in security features, such ...read more