BUSINESSNEXT Junior Engineer Interview Questions and Answers

Numerical, logical reasoning

Q1. Basic of languages and software
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Q2. Explain what is java
Ans. 
Java is a high-level programming language known for its portability, security, and object-oriented features.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is known for its strong security features, such as automatic memory management and built-in exception handling

• Java is object-oriented, allowing for the creation of reusable code through classes and objects

• Popular ex...read more
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Q3. What are jdbc steps for conn
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JDBC steps for establishing a connection with a database
• Load the JDBC driver class using Class.forName() method

• Create a connection object using DriverManager.getConnection() method

• Create a statement object using connection.createStatement() method

• Execute SQL queries using statement.executeQuery() or statement.executeUpdate() methods

• Close the connection using connection.close() method
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Q4. What is ha shing in java
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Hashing in Java is a technique used to convert a key into an index in a hash table, allowing for efficient data retrieval.
• Hashing is used to quickly retrieve data from a large dataset by converting keys into indexes in a hash table.

• It involves applying a hash function to the key to generate a unique hash code.

• Java provides built-in hash functions for common data types like strings and integers.

• Example: HashMap and Hash...read more
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Q1. Tell me about yourself
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