10+ Shraddha Unipath Specialty Laboratory Interview Questions and Answers

The question is about finding the total number of handshakes in a meeting of 10 people.

• Each person shakes hands with 9 others.

• Total handshakes = 10 x 9 / 2 = 45.

Program to swap value of two variables without using a third variable.

• Use arithmetic operations to swap values

• Add both variables and store the sum in one variable

• Subtract the value of one variable from the sum and store it in the other variable

• Subtract the value of the other variable from the sum and store it in the first variable

Program to print prime numbers

• Start with a loop from 2 to n (number to check)

• For each number, check if it is divisible by any number from 2 to its square root

• If not divisible, it is a prime number and print it

A do-while loop is a control flow statement that executes a block of code at least once before checking the condition.

• The do-while loop is similar to the while loop, but the condition is checked at the end of the loop.

• The loop will always execute at least once, even if the condition is false.

• Syntax: do { // code block } while (condition);

• Example: do { x++; } while (x < 10);

Program to check if a number is odd and to find a digit in the number.

• Use modulo operator to check if a number is odd (number % 2 == 1)

• Convert the number to a string and check if the digit is present using string methods

• Handle edge cases like negative numbers and non-integer inputs

Program to find factorial of a number

• Use a loop to multiply the number with all the numbers less than it

• Handle the case when the number is 0 or 1 separately

• Use recursion to find factorial of a number

Basic tool names in Creo or AutoCAD

• Creo: Sketch, Extrude, Revolve, Sweep, Loft, AutoCAD: Line, Circle, Rectangle, Arc, Polyline

A stress-strain diagram shows the relationship between stress and strain in a material.

• The diagram plots stress on the y-axis and strain on the x-axis.

• The slope of the curve represents the material's stiffness or Young's modulus.

• The yield point is where the material begins to deform plastically.

• The ultimate strength is the maximum stress the material can withstand before failure.

• The area under the curve represents the material's toughness.

• Examples of stress-strain diagrams in...read more

Storage classes in C are used to define the scope and lifetime of variables.

• There are four storage classes in C: auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables have a lifetime throughout the program and are initialized only once.

• Extern variables are declared outside of any function and can be accessed by other files.

Program to print odd numbers

• Use a loop to iterate through numbers

• Check if the number is odd using modulus operator

• Print the odd numbers

Multithreading in Java allows multiple threads to run concurrently, improving performance and responsiveness.

• Multithreading is achieved in Java by extending the Thread class or implementing the Runnable interface.

• Threads share the same memory space, so synchronization is important to prevent data corruption.

• Java provides synchronized keyword, locks, and atomic variables for thread synchronization.

• Example: Creating a new thread using Thread class - Thread myThread = new Thread...read more