Advance Java Programming Prilim Exam

In given code ,fill the required methodsimport java.io.*;  import java.net.*;  public class InetDemo{  public static void main(String[] args){  try{  InetAddress ip=InetAddress.getByName("www.google.com");    System.out.println("Host Name: "+_________________);  System.out.println("IP Address: "+__________________);  }catch(Exception e){System.out.println(e);}  }  }   

• Ip.getHostAddress()

• Ip.getHostName()

• Ip.getHostName(), ip.getHostAddress()

• Ip.getHostAddress(),ip.getHostName()

Which of these are integer constants defined in ActionEvent class? 

• ALT_MASK

• CTRL_MASK

• SHIFT_MASK

• All of the mentioned

In event handling, A listener is a object that is notified when an event occurs.

• True

• False

Which of these method of DatagramPacket is used to find the length of byte array?

• Getnumber()

• Length()

• Length()

• GetLength()

Fill in blanksimport java.sql.*; class InsertPrepared{ public static void main(String args[]){ try{ Class.____________("sun.jdbc.odbc._______________________"); Connection con=DriverManager.getConnection("jdbc:odbc:employyedsn");   PreparedStatement stmt=______________________("insert into Emp values(?,?)"); stmt._____________(1,101);stmt.setString(2,"Ratan"); int i=stmt._________________System.out.println(i+" records inserted"); con.close(); }catch(Exception e){ System.out.println(e);} } }  

• Sun.jdbc.odbc.JdbcOdbcDriver, setIntcon.prepareStatement

• ForName,JdbcOdbcDriver, con.prepareStatement,setInt, executeUpdate();

• Sun.jdbc.odbc, setInt,executeUpdate

• ExecuteUpdate,sun.jdbc.odbc, setInt

Which of these packages contains all the classes and methods required for even handling in Java?

• Java.applet

• java.awt

• Java.event

• java.awt.event

Scrollable ResultSet have  this constants

• TYPE_FORWORD_ONLY

• TYPE_SCROLL_INSENSITIVE

• TYPE_SCROLL_SENSITIVE

• All of the above

Which of these methods are used to register a mouse motion listener?

• addMouse()

• addMouseListener()

• AddMouseMotionListner()

• EventMouseMotionListener()

The URLConnection class can be used to read and write data to the specified resource referred by the URL?

• True

• False

TCP,FTP,Telnet,SMTP,POP etc. are examples of ? 

• Socket

• IP Address

• Protocol

• MAC Address

What is output of following program

• The Internet address of the server

• The Internet address of the client

• The Internet address of the host

• The Internet address of any other PC

UDP you just send packets of data (datagrams) to some IP address on the network

• True

• False

Identify missing statements in bellow mention codeimport java.sql.*;  class FetchRecord{  public static void main(String args[])throws Exception{      _____________________("sun.jdbc.odbc.JdbcOdbcDriver");      __________________con=DriverManager.getConnection("jdbc:odbc:mydsn1);  Statement stmt=con.createStatement(); int result =__________________("delete from emp where id=33");      System.out.println(result+" records affected");      ______________________    }} 

• GetConnection(),Connection,forName

• Class.forName,getConnection() ,mydsn1,Connection

• Class.forName,Connection, stmt.executeUpdate , con.close();

• Con.close();

Different types of JDBC drivers

• JDBC-ODBC bridge driver

• Native-API driver (partially java driver)

• Network Protocol driver (fully java driver)

• Native protocol (Thin driver)

• All of the above

Which of the method used to to get content type of this file?

• ContentType()

• ContentType()

• GetContentType()

• GetContentType()

What is the purpose of Jtable?

• JTable object displays rows and columns of data.

• JTable object displays rows of data with header.

• JTable object displays columns of data

• JTable object displays data in Table form with header detail.

Which of these class is used to create servers that listen for either local or remote clientprograms?

• httpServer

• ServerSocket

• Socket

• HttpResponse

Which method is used to display icon on a component?  

• RollOverIcon(ImageIcon i)

• SetIcon(ImageIcon i)

• DisplayIcon(ImageIcon i)

• RemoveIcon (ImageIcon i )

Write a comment on following method Statement state = con.createStatement(); 

• To empty the log

• Creates statement object and returns it as the return value.

• To prepare the statement

• Creating url

The ................................ method executes a simple query and returns a single Result Set object.

• ExecuteUpdate()

• ExecuteQuery()

• Execute()

• Noexecute()

Identify components used in below output

• Applet, Label TextField

• Label, TextField, Button

• Applet, Button TextField

• Grid Layout, Label, Button

The ............................. package contains classes that help in connecting to a database, sending SQL statements to the database, and processing the query results. 

• Connection.sql

• Db.sql

• Javax.sql

• Java.sql

Which of these exception is thrown by URL class’s constructors?

• URLNotFound

• MalformedURLException

• URLSourceNotFound

• URLNotFoundException

Identify missing statements in given program

• AdjustmentPerformed(AdjustmentEvent ae);

• ItemStateChanged(ItemEvent ie);

• ItemStateChanged(ActionEvent ie);

• ActionPerformed(ActionEvent ae);

____________________to call stored procedures from within a JDBC application

• CallableStatement

• Statement

• PreparedStatement

• ExcuteStatement

Which of these class is used to encapsulate IP address and DNS?

• DatagramPacket

• URL

• InetAddress

• ContentHandler

Select appropriate code for the given output 

• Code1

• Code2

• Code3

• Code4

Which of following statements loads the JDBC-ODBC driver?

• Class.forName (sun.jdbc.odbc.JdbcOdbcDriver)

• Class.forName (“sun.jdbc.odbc.JdbcOdbcDriver”)

• Class.loadClass (“sun.jdbc.odbc.JdbcOdbcDriver”)

• Class.loadClass (sun.jdbc.odbc.JdbcOdbcDriver)

Select the statement to add in program to get correct output

• C.createStatement( )

• S.executeUpdate()

• S.close()

• C.close()

Which of these constant value will change when the button at the end of scroll bar was clicked to increase its value? 

• BLOCK_DECREMENT

• BLOCK_INCREMENT

• UNIT_DECREMENT

• UNIT_INCREMENT

What is a listener in context to event handling?

• A listener is a variable that is notified when an event occurs.

• A listener is a object that is notified when an event occurs.

• A listener is a method that is notified when an event occurs.

• None of the mentioned

Which of these methods can be used to determine the type of adjustment event? 

• getType()

• GetEventType()

• GetAdjustmentType()

• GetEventObjectType()

 which AWT component is used to create popup list of string items from which only one can be selected at a time. 

• List

• Choice

• MenuBar

• Scrollbar

Which is the passive control 

• Checkbox

• Scrollbar

• Label

• Button

What is the output of this program?

import java.net.*;class networking {public static void main(String[] args) throws MalformedURLException {URL obj = new URL("http://www.sanfoundry.com/javamcq");System.out.print(obj.getPort());}}

• 1

• 0

• -1

• Garbage value

The ........................ object allows you to execute parametrized queries.

• ResultSet

• Parametrized

• PreparedStatement

• CalableStatement

What is output of following program

• Google

• Http://www.google.com

• Www.google.com

• Google.com

 import java.sql.*;  class FetchRecord{  public static void main(String args[])throws Exception{      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");      Connection con=DriverManager.getConnection("jdbc:odbc:mydsn1);   Statement stmt=con.createStatement();ResultSet rs=stmt.executeQuery("select * from emp");  rs.absolute(3);  System.out.println("FName="+rs.getString(1)+"LName="+rs.getString(2));    con.close();  }}  

• It return all data records from emp table

• It return all data,and print FName,LName from emp table

• Print only row 3 value and print FName,LName from emp table

• None of the above

Which of these methods can be used to determine the type of event? 

• GetID()

• GetSource()

• GetEvent()

• GetEventObject()

Which of these class is necessary to implement datagrams?

• DatagramPacket

• DatagramSocket

• Only DatagramSocket

• Both A & B

Which methods are commonly used in ServerSocket class?

• Public OutputStream getOutputStream()

• Public synchronized void close()

• Public Socket accept()

• None of the above

Which of these is superclass of all Adapter classes? 

• Applet

• Component

• Event

• InputEvent

What is JDBC?

• Java compiler

• Java interpreter

• Java API

• Both A and B

To delete the records from database, use the following sequence of the part of coding: 

• String b = ""delete from emp where ID=1""; PreparedStatement ps=con.prepareStatement(b);ps.executeUpdate();

• String b = ""delete from emp where ID=1""; PreparedStatement ps=con.prepareStatement(b);ps.Update();

• String b = ""delete from emp where ID=1""; PreparedStatement ps=con.prepareStatement(b) ;s.executeQuery();

• String b = ""drop table from emp where ID=1""; PreparedStatement ps=con.prepareStatement(b); s.executeUpdate();

• URL Class

• URLConnection Class URLConnection Class URLConnection Class

• Connection Class

• ConnectionUrl Class

What is the default length of the queue in following constructor of Serversocket? ServerSocket(int portno)

• 50

• 25

• 30

• 40

Identify the error in given program

• Error in statement in which JScrollPane is created

• Error in statement in which applet tag is declared

• Error in statement in which JTable is created

• None of the above

How many types of controls does AWT supports these controls are subclasses of component?

• 5

• 7

• 6

• 8