Java Basic

Java Basic

Easy Questions

JAVA Programming

Java Basic
Basic Syntax
Object & Classes
Basic Datatypes
Variable Types
Modifier Types
Basic Operators
Loop Control
Decision Making
Numbers
Characters
Strings
Arrays
Date & Time
Regular Expressions
Methods
Files and I/O
Exceptions
Inheritance
Polymorphism
Abstraction
Encapsulation
Interfaces
Packages
Data Structures
Collections
Generics
Serialization
Networking
Multithreading
Applet
  1. Which one of the following contains date information?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    java.sql.Time contains only time. Whereas, java.sql.TimeStamp contains both time and date.

  1. Which of the following is advantage of using PreparedStatement in Java?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    PreparedStatement in Java improves performance and also prevents from SQL injection.

  1. Which of the following is advantage of using JDBC connection pool?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    Since the JDBC connection takes time to establish. Creating connection at the application start-up and reusing at the time of requirement, helps performance of the application.

  1. Which of the following contains both date and time?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: A

    java.util.date contains both date and time. Whereas, java.sql.date contains only date.

  1. How to specify autowiring by name?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    Different beans of the same class are identified by name.