Software Engineer Trainee

Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train is 120 meters, in what time (in seconds) will they cross each other traveling in opposite directions?

What decimal of an hour is a second?

A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. What is the time required by the first pipe?

The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. What is the present worth?

Name the memory which allocates space for DOS and application?

Which mode loads minimal set of drivers when starting Windows?

What scheduling algorithm allows processes that are logical runnable to be temporarily suspended?

The operating system of a computer serves as a software interface between the user and?

What is the use of “this” keyword in Java?

Which of these keywords is used to define interfaces in Java?

What will be the output of the following Java code snippet?

import java.util.*;
class Arraylists 
{
public static void main(String args[]) 
{
ArrayLists obj = new ArrayLists();
obj.add("A");
obj.add("B");
obj.add("C");
obj.add(1, "D");
System.out.println(obj);
}
}

Which one of the following is not an access modifier?

Ninja has ‘N’ gardens labeled from [1, N] under his supervision. He created an array that stores bidirectional paths between I1 and I2, where I1 and I2 are gardens stored at the position I in the array. In each garden, he wants to plant 4 types of flowers.

You need to choose a flower type for each garden such that any two gardens connected by a path, have different types of flowers.

Note:

1. All gardens have at most three paths coming into or leaving the garden. 
2. There can be more than one possible answer to this question. You need to print the smallest valid answer when all possible answers are sorted in lexicographical order.

What is the difference between stack and heap? (Learn)

Explain the concept of constructor overloading. (Learn)

What do you mean by RTOS? (Learn)

What is the difference between process and thread? (Learn)

What is normalization? Explain types of normalization. (Learn)

A thief is robbing a store and can carry a maximum weight of ‘W’ into his knapsack. There are 'N' items available in the store and the weight and value of each item is known to the thief. Considering the constraints of the maximum weight that a knapsack can carry, you have to find the maximum profit that a thief can generate by stealing items.

Note: The thief is not allowed to break the items.

For example, N = 4, W = 10 and the weights and values of items are weights = [6, 1, 5, 3] and values = [3, 6, 1, 4]. Then the best way to fill the knapsack is to choose items with weight 6, 1 and 3. The total value of knapsack = 3 + 6 + 4 = 13.