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Java Programming - MCQ Practice Questions

Practice free Java Programming multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

958 questions | 100% Free

Q.181Easy

What is the primary advantage of using PreparedStatement over Statement in JDBC?

Q.182Easy

Which JDBC method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE statement?

Q.183Easy

What does the DriverManager.getConnection() method return?

Q.184Easy

In JDBC, which exception is thrown when the database driver class is not found?

Q.185Easy

What is the purpose of the Connection.commit() method in JDBC?

Q.186Easy

Which interface in JDBC is used to execute SQL queries and retrieve results?

Q.187Easy

Which JDBC API is used to execute parameterized queries safely?

Q.188Easy

What is the correct syntax to load a JDBC driver in Java?

Q.189Easy

Which method is used to retrieve the next row from a ResultSet?

Q.190Easy

What exception is thrown when a database connection fails in JDBC?

Q.191Easy

In JDBC, what does the executeQuery() method return?

Q.192Easy

Which interface in JDBC is used to execute parameterized queries and prevent SQL injection attacks?

Q.193Easy

What is the correct sequence to establish a JDBC connection in Java?

Q.194Easy

Which method of Connection interface is used to start a transaction in JDBC?

Q.195Easy

In JDBC, what does the BatchUpdate feature allow developers to do?

Q.196Easy

Which exception is thrown when a JDBC driver is not found in the classpath?

Q.197Easy

What is the difference between commit() and rollback() in JDBC transactions?

Q.198Easy

In a JDBC application, which interface is responsible for executing SQL queries and returning ResultSet objects?

Q.199Easy

What is the primary purpose of Generics in Java?

Q.200Easy

Which keyword is used to declare a generic class in Java?