BUSINESSNEXT Engineer Interview Questions and Answers

Swapping two numbers without using a temp variable

• Use arithmetic operations to swap the values

• Add the two numbers and store the result in the first variable

• Subtract the second variable from the result and store it in the second variable

• Subtract the second variable from the first variable to get the original value of the second variable

• Example: a=5, b=7; a=a+b=12, b=a-b=5, a=a-b=7

Checking points in beam and column are critical for ensuring structural integrity.

• Checking for cracks or deformations

• Ensuring proper alignment and levelness

• Verifying adequate reinforcement

• Checking for proper bearing and connection details

• Using non-destructive testing methods

• Following applicable codes and standards

Java is a high-level programming language used for developing applications and software.

• Java is object-oriented and platform-independent.

• It is used for developing web, mobile, and desktop applications.

• Java code is compiled into bytecode and executed by the Java Virtual Machine (JVM).

• Popular frameworks and tools for Java development include Spring, Hibernate, and Maven.