Synechron Senior Java Developer Interview Questions and Answers

Computer networking is the practice of connecting devices together to share resources and communicate with each other.

• Computer networking involves the use of hardware and software to connect devices together, such as computers, printers, and servers.

• Networking protocols, such as TCP/IP, are used to facilitate communication between devices.

• Examples of computer networks include local area networks (LANs), wide area netwo...read more

Interfaces define a contract for classes to implement certain methods and properties.

• Interfaces allow for polymorphism and loose coupling.

• Classes can implement multiple interfaces.

• Interfaces cannot be instantiated on their own.

• Interfaces can have default method implementations.

• Interfaces can be used to enforce design patterns like the adapter pattern.

Program to print a pattern and implement bubble sort on an array of strings.

• For pattern printing, use nested loops to print the desired pattern.

• For bubble sort, compare adjacent elements and swap if necessary.

• Use a loop to iterate through the array until no more swaps are needed.

SQL command for creating a table

• Use CREATE TABLE statement

• Specify table name and column names with data types

• Add any constraints or indexes as needed

SQL commands for inserting, updating, and deleting data from a table.

• INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3);

• UPDATE table_name SET column1 = new_value1 WHERE condition;

• DELETE FROM table_name WHERE condition;

Truncate and drop are SQL commands used to remove data from a table.

• Truncate removes all data from a table but keeps the structure intact.

• Drop removes the entire table and its structure.

• Truncate is faster than drop as it only removes data.

• Drop cannot be undone while truncate can be rolled back.

• Truncate resets the identity of the table while drop does not.

• Examples: TRUNCATE TABLE table_name; DROP TABLE table_name;

C++ is an extension of C with object-oriented programming features.

• C++ supports classes and objects while C does not.

• C++ has better support for polymorphism and inheritance.

• C++ has a standard template library (STL) while C does not.

• C++ allows function overloading while C does not.

• C++ has exception handling while C does not.

I am a software developer with experience in Java and Python.

• I have a Bachelor's degree in Computer Science.

• I have worked on various projects involving web development and data analysis.

• I am proficient in Java and Python programming languages.

• I have experience with frameworks such as Spring and Django.

• I am familiar with databases such as MySQL and MongoDB.

I have always been fascinated by technology and its ability to solve complex problems.

• I enjoy problem-solving and logical thinking

• I have a natural curiosity for how things work

• I see the potential for technology to make a positive impact on society

• I have experience in programming and find it rewarding

• I am excited about the constant innovation and evolution in the IT industry

My strengths include problem-solving, adaptability, and teamwork. My weakness is public speaking.

• Strengths: problem-solving, adaptability, teamwork

• Examples: I have successfully solved complex coding problems, adapted to new technologies quickly, and collaborated effectively with team members.

• Weakness: public speaking

• Examples: I get nervous when speaking in front of large groups, but I am working on improving my present

I have the technical skills, experience, and passion to excel in this role.

• I have a strong background in software development, with expertise in multiple programming languages and frameworks.

• I have experience working on complex projects and collaborating with cross-functional teams.

• I am passionate about staying up-to-date with the latest technologies and trends in the industry.

• I am a quick learner and adaptable to new ...read more