ICF Next Software Developer Interview Questions and Answers

Q1. Sql related ques mege into, rank,dense rank,queries of joins etc.
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Q2. Java 8 related ques optional and stream
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Q1. Maximum Sum Subarray
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Q2. Insert node in binary search tree
Ans. 
To insert a node in a binary search tree, compare the value of the node to be inserted with the current node and traverse left or right accordingly.
• Start at the root node and compare the value of the node to be inserted with the current node.

• If the value is less than the current node, move to the left child node. If it is greater, move to the right child node.

• Repeat this process until reaching a leaf node, then insert ...read more
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30 questions test of aptitide online

Q1. Explain microprocessor
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A microprocessor is a small electronic device that functions as the central processing unit of a computer.
• Microprocessors are made up of millions of transistors that perform calculations and execute instructions.

• They are commonly found in computers, smartphones, and other electronic devices.

• Examples of popular microprocessors include Intel's Core series and AMD's Ryzen series.

• Microprocessors process data and perform ta...read more
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Q2. What do you mean by iot
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IoT stands for Internet of Things, which refers to the network of physical devices connected to the internet, allowing them to collect and exchange data.
• IoT involves connecting everyday objects to the internet to enable them to send and receive data.

• Examples of IoT devices include smart thermostats, wearable fitness trackers, and connected appliances.

• IoT technology enables automation, remote monitoring, and data analyt
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DSA + JAVA + Spring boot

LLD (bookmyshow) + DSA

Reasoning 20 minutes

Related to my fields 20

Moderate coding question

Assignment based on a app

Q1. What is inheritance in java?
Ans. 
Inheritance in Java allows a class to inherit properties and behavior from another class.
• Inheritance allows for code reusability and promotes a hierarchical relationship between classes.

• Subclasses can access the methods and fields of their superclass.

• Example: class Dog extends Animal {} - Dog inherits properties and behavior from Animal class.
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Q2. Difference between OOP and POP
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OOP focuses on objects and classes, while POP focuses on procedures and functions.
• OOP emphasizes data encapsulation and inheritance

• POP emphasizes sequential execution of procedures

• Example of OOP: Java, C++

• Example of POP: C, Pascal
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Q1. Where do you see in next 5 years?
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Q2. What is preferred job location
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Q1. Implement an immutable class.
Ans. 
An immutable class is a class whose instances cannot be modified after creation.
• Use final keyword for class declaration to prevent inheritance

• Make all fields private and final to prevent modification

• Do not provide setter methods, only getter methods should be used
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Q2. Implement a springboot service that intercepts http requests.
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Implement a Springboot service to intercept HTTP requests.
• Create a Springboot application with necessary dependencies.

• Implement a custom interceptor by extending HandlerInterceptorAdapter.

• Override preHandle and postHandle methods to intercept requests and responses.

• Register the interceptor in the WebMvcConfigurerAdapter configuration class.
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