Synechron Java Developer Interview Questions, Process, and Tips

Q1. Tell me about your project
Ans. 
Developed a web-based inventory management system for a retail company.
• Used Java, Spring Boot, and MySQL for backend development.

• Implemented user authentication and authorization using Spring Security.

• Designed a responsive front-end using HTML, CSS, and JavaScript.

• Integrated barcode scanning functionality for efficient inventory tracking.
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Q2. Class vs object
Ans. 
A class is a blueprint or template for creating objects, while an object is an instance of a class.
• A class defines the properties and behaviors of objects, while an object is a specific instance of a class.

• Classes can be used to create multiple objects with similar characteristics.

• Objects have state (attributes) and behavior (methods) defined by the class.

• Example: Class 'Car' defines properties like 'color' and 'model'...read more
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Q1. Salary expectation
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Q2. Date to join?
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Q1. Dynamic Array Implementation
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Q2. Linkedlist Reverse
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Q1. Write code for producer , consumer in java.
Ans. 
Producer-consumer problem is a classic synchronization problem in multithreading.
• Use wait() and notify() methods for synchronization

• Create a shared buffer to store data between producer and consumer

• Ensure proper handling of synchronization to avoid race conditions
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Q2. How many types of lock are there in java and how to achieve multithreading.
Ans. 
There are two types of locks in Java - synchronized and ReentrantLock. Multithreading can be achieved by using these locks.
• Two types of locks in Java are synchronized and ReentrantLock

• Synchronized keyword can be used to achieve synchronization in Java

• ReentrantLock provides more flexibility and control over locking mechanisms

• Example: synchronized block - synchronized(obj) { // code }

• Example: ReentrantLock - ReentrantLoc...read more
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Aptitude test for java developer