APP_UNIT_3 Quiz

What is a thread in Java?

• A light weight process that run independently within a a program

• A data structure to store variable

• A loop

• A synchronization mechanism

Which class is used to create a thread in Java?

• Thread

• Runnable

• Process

• Executor

What is a race condition in Multi-threaded Java programming?

• A situation where threads synchronize perfectly.

• A situation where threads never finish execution

• A situation where multiple threads access shared data simultaneously, leading to unpredictable results.

• A situation where threads throw exceptions

What is the output of the program? class Multithreded_program { public static void main(String [] args) { Thread t = Thread.CurrentThread(); System.out.println(t); } } Thread[main,5]

• A)     Thread[main,5]

• B)      Thread[main,5,main]

• C)      Thread[5,main]

• D)     Thread[0]

What are the major components of the JDBC?

• DriverManager, Driver, Connection, Statement, and ResultSet

• DriverManager, Driver, Connection, and Statement

• DriverManager, Statement, and ResultSet

• DriverManager, Connection, Statement, and ResultSet

Which of the following method is used to perform DML statements in JDBC?

• executeResult()

• executeQuery()

• executeUpdate()

• execute()

Parameterized queries can be executed by?

• Parameterized Statement

• Prepared Statement

• Callable Statement and Parameterized Statement

• All kinds of Statements

An applet is a Java class that extends the?

• java.Applet class

• java class

• Applet class

• java.applet.Applet class

Applets are designed to be embedded within an __________.

•  Javascript

• Css
  

• HTML
  

• SQL

Which method is automatically called after the browser calls the init method?

• start

• stop

• destroy

• paint