How to go through java ???
hi frds !!!
i am beginer fof java .
i want to learn core java , advance java ,and j2ee .
i want to learn why should any one go for this technology ???
i dont know from where to start .
please help me .
send me some documentation pdf files on my mail
regarding core java , advance java and j2ee my mail address is [email protected]
thank you .
Check out the links uder Resources for Beginners at
http://www.thejword.com/3.html#beginner_resources
Similar Messages
-
How to change system time through java program
Hi
I want to know, how to change system time through java program.
give me a idia with example.
ThanksThere isn't any core Java API for this. Use JNI or call an external process with Runtime.exec().
~ -
Need Help-How Store the input parameter through java bean
Hello Sir,
I have a simple Issue but It is not resolve by me i.e input parameter
are not store in Ms-Access.
I store the input parameter through Standard Action <jsp:useBean>.
jsp:useBean call a property IssueData. this property exist in
SimpleBean which create a connection from DB and insert the data.
At run time servlet and server also show that loggging are saved in DB.
But when I open the table in Access. Its empty.
Ms-Access have two fields- User, Password both are text type.
Please review these code:
login.html:
<html>
<head>
<title>A simple JSP application</title>
<head>
<body>
<form method="get" action="tmp" >
Name: <input type="text" name="user">
Password: <input type="password" name="pass">
<input type="Submit" value="Submit">
</form>
</body>
</html>LoginServlet.java:
import javax.servlet.*;
import javax.servlet.http.*;
public class LoginServlet extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException{
try
String user=request.getParameter("user");
String pass=request.getParameter("pass");
co.SimpleBean st = new co.SimpleBean();
st.setUserName(user);
st.setPassword(pass);
request.setAttribute("user",st);
request.setAttribute("pass",st);
RequestDispatcher dispatcher1 =request.getRequestDispatcher("submit.jsp");
dispatcher1.forward(request,response);
catch(Exception e)
e.printStackTrace();
}SimpleBean.java:
package co;
import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.util.*;
public class SimpleBean {
private String user="";
private String pass="";
private String s="";
public String getUserName() {
return user;
public void setUserName(String user) {
this.user = user;
public String getPassword() {
return pass;
public void setPassword(String pass) {
this.pass = pass;
public String getIssueData() //method that create connection with database
try
System.out.println("Printed*************************************************************");
getUserName();
getPassword();
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println("Loading....");
Connection con=DriverManager.getConnection("jdbc:odbc:simple");
System.out.println("Connected....");
PreparedStatement st=con.prepareStatement("insert into Table1 values(?,?)");
System.out.println("~~~~~~~~~~~~~~~~~~~~");
String User=getUserName();
st.setString(1,User);
String Password=getPassword();
st.setString(2,Password);
st.executeUpdate();
System.out.println("Query Executed");
con.close();
s= "Your logging is saved in DB ";
System.out.println("Your logging is saved in DB *****************");
return(s);
catch(Exception e)
e.printStackTrace();
return "failed";
}submit.jsp:
This is Submit page
<html><body>
Hello
Student Name: <%= ((co.SimpleBean)request.getAttribute("user")).getUserName() %>
<br>
Password: <%= ((co.SimpleBean)request.getAttribute("pass")).getPassword() %>
<br>
<jsp:useBean id="st" class="co.SimpleBean" scope="request" />
<jsp:getProperty name="st" property="IssueData" />
</body></html>web.xml:<web-app>
<servlet>
<servlet-name>one</servlet-name>
<servlet-class>LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>one</servlet-name>
<url-pattern>/tmp</url-pattern>
</servlet-mapping>
<jsp-file>issue.jsp</jsp-file>
<jsp-file>submit.jsp</jsp-file>
<url-pattern>*.do</url-pattern>
<welcome-file-list>
<welcome-file>Login.html</welcome-file>
</welcome-file-list>
</web-app>Please Help me..Thanks.!!!
--Dear Sir,
Same issue is still persist. Input parameter are not store in database.
After follow your suggestion when I run this program browser show that:i.e
This is Submit page Hello Student Name: vijay
Password: kumar
<jsp:setProperty name="st" property="userName" value="userValue/> Your logging is saved in DB
Please review my code.
login.html:
{code}<html>
<head>
<title>A simple JSP application</title>
<head>
<body>
<form method="get" action="tmp" >
Name: <input type="text" name="user">
Password: <input type="password" name="pass">
<input type="Submit" value="Submit">
</form>
</body>
</html>{code}
LoginServlet.java:
{code}import javax.servlet.*;
import javax.servlet.http.*;
public class LoginServlet extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException{
try
String userValue=request.getParameter("user");
String passValue=request.getParameter("pass");
co.SimpleBean st = new co.SimpleBean();
st.setuserName(userValue);
st.setpassword(passValue);
request.setAttribute("userValue",st);
request.setAttribute("passValue",st);
RequestDispatcher dispatcher1 =request.getRequestDispatcher("submit.jsp");
dispatcher1.forward(request,response);
catch(Exception e)
e.printStackTrace();
}{code}
SimpleBean.java:
{code}package co;
import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.util.*;
public class SimpleBean {
private String userValue="";
private String passValue="";
private String s="";
public String getuserName() {
return userValue;
public void setuserName(String userValue) {
this.userValue = userValue;
public String getpassword() {
return passValue;
public void setpassword(String passValue) {
this.passValue= passValue ;
public String getissueData() //method that create connection with database
try
System.out.println("Printed*************************************************************");
getuserName();
getpassword();
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("Connection loaded");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@VijayKumar-PC:1521:XE","SYSTEM","SYSTEM");
System.out.println("Connection created");
PreparedStatement st=con.prepareStatement("insert into vij values(?,?)");
System.out.println("~~~~~~~~~~~~~~~~~~~~");
String userName=getuserName();
st.setString(1,userName);
String password=getpassword();
st.setString(2,password);
st.executeUpdate();
System.out.println("Query Executed");
con.close();
s= "Your logging is saved in DB ";
System.out.println("Your logging is saved in DB *****************");
return(s);
catch(Exception e)
e.printStackTrace();
return "failed";
}{code}
submit.jsp:
{code}This is Submit page
<html><body>
Hello
Student Name: <%= ((co.SimpleBean)request.getAttribute("userValue")).getuserName() %>
<br>
Password: <%= ((co.SimpleBean)request.getAttribute("passValue")).getpassword() %>
<br>
<jsp:useBean id="st" class="co.SimpleBean" scope="request" />
<jsp:setProperty name="st" property="userName" value="userValue/>
<jsp:setProperty name="st" property="password" value="passValue"/>
<jsp:getProperty name="st" property="issueData" />
</body></html>web.xml:<web-app>
<servlet>
<servlet-name>one</servlet-name>
<servlet-class>LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>one</servlet-name>
<url-pattern>/tmp</url-pattern>
</servlet-mapping>
<jsp-file>submit.jsp</jsp-file>
<url-pattern>*.do</url-pattern>
<welcome-file-list>
<welcome-file>Login.html</welcome-file>
</welcome-file-list>
</web-app>Sir I can't use EL code in jsp because I use weblogic 8.1 Application Server.This version are not supported to EL.
Please help me...How store th input parameter in Database through Java Bean -
How to send sms through java program?
hi,
i am trying to send sms through java program.i am usining ubuntu 6.04.i am using modem MC35i.i use the jSMSEnjine.jar and rxtxcomm.jar.
these are the following program.
import org.jsmsengine.*;
import java.util.*;
class SendMessage
public static void main(String[] args)
int status;
// Create jSMSEngine service.
CService srv = new CService("Com2",9600);
//CService srv = new CService("COM2",9600);
System.out.println();
System.out.println("SendMessage(): sample application.");
System.out.println(" Using " + srv._name + " " + srv._version);
System.out.println();
try
// Initialize service.
srv.initialize();
Thread thread =Thread.currentThread();
thread.sleep(1000);
System.out.println(srv);
// Set the cache directory.
srv.setCacheDir(".\\");
// Set the phonebook.
// srv.setPhoneBook("../misc/phonebook.xml");
// Connect to GSM device.
status = srv.connect();
// Did we connect ok?
int st=CService.ERR_OK;
System.out.println(st);
System.out.println(status);
if (status == CService.ERR_OK)
// Set the operation mode to PDU - default is ASCII.
srv.setOperationMode(CService.MODE_PDU);
// Set the SMSC number (set to default).
srv.setSmscNumber("");
// Print out GSM device info...
System.out.println("Mobile Device Information: ");
System.out.println(" Manufacturer : " + srv.getDeviceInfo().getManufacturer());
System.out.println(" Model : " + srv.getDeviceInfo().getModel());
System.out.println(" Serial No : " + srv.getDeviceInfo().getSerialNo());
System.out.println(" IMSI : " + srv.getDeviceInfo().getImsi());
System.out.println(" S/W Version : " + srv.getDeviceInfo().getSwVersion());
System.out.println(" Battery Level : " + srv.getDeviceInfo().getBatteryLevel() + "%");
System.out.println(" Signal Level : " + srv.getDeviceInfo().getSignalLevel() + "%");
// Create a COutgoingMessage object and dispatch it.
// *** Please update the phone number with one of your choice ***
// String smsLengthTest="Hi"+"\nTesting is going on.Test for sending unlimited number of charecter.So you will get N number of SMS.Initially I trancate the whole string by 70 charecter.Later I will put it upto 90 charecter.Some chararecter should kept for header portion.I don't know the total number.It is just test.If you got the sms u should appreciate me...This is Ripon...I have written sms program";
String smsLengthTest="Hi\n"+"This is Govindo";
int mao=smsLengthTest.length();
System.out.println("Length of sms :"+mao);
String smsNo="9433314095";
smsNo="+91"+smsNo;
if(mao<70)
COutgoingMessage msg = new COutgoingMessage(smsNo,smsLengthTest);
// Character set is 7bit by default - lets make it UNICODE :)
// We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
// this does not make ANY difference...
msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
else System.out.println("Message Failed!");
else
// COutgoingMessage msg = new COutgoingMessage(smsNo,smsLengthTest);
// LinkedList messageList;
// messageList = new LinkedList();
// messageList.add(msg);
// LinkedList maooo=new LinkedList();
// maooo=srv.splitLargeMessages(messageList);
int sizelength=0;
int counter=0;
sizelength=smsLengthTest.length();
System.out.println("SMS length :"+sizelength);
int smsCntr=sizelength/70;
System.out.println("smsCntr :"+smsCntr);
counter=smsCntr+1;
int j=70;
int k=0;
try
for(int i=0;i<smsCntr;i++)
String test="";
test=test+i;
test=smsLengthTest.substring(k,j);
System.out.println(test);
System.out.println(test.length());
COutgoingMessage msg = new COutgoingMessage(smsNo, test);
System.out.println("hi this is suman" + smsNo);
// Character set is 7bit by default - lets make it UNICODE :)
// We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
// this does not make ANY difference...
msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
else System.out.println("Message Failed!");
k=k+70;
j=j+70;
catch(Exception e)
System.out.println("Error...1");
e.printStackTrace();
e.getMessage();
String lastPortion=smsLengthTest.substring(k);
System.out.println(lastPortion);
COutgoingMessage msg = new COutgoingMessage(smsNo, lastPortion);
// Character set is 7bit by default - lets make it UNICODE :)
// We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
// this does not make ANY difference...
msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
else System.out.println("Message Failed!");
// Disconnect from GSM device.
srv.disconnect();
else System.out.println("Connection to mobile failed, error: " + status);
catch (Exception e)
e.printStackTrace();
System.exit(0);
the error is:
SendMessage(): sample application.
Using jSMSEngine API 1.2.6 (B1)
org.jsmsengine.CService@addbf1
0
-101
Connection to mobile failed, error: -101
please help me,its very urgent.come back in about 5 years, we may have time for you by then.
In the meantime, how about contacting the people who wrote that library and asking them nicely for help (rather than trying to order people to drop whatever they're doing and jump through hoops to accommodate your every wish as you're doing here)? -
How to get the source code of an HTML page in Text file Through java?
How to get the source code of an HTML page in Text file Through java?
I am coding an application.one module of that application is given below:
The first part of the application is to connect our application to the existing HTML form.
This module would make a connection with the HTML page. The HTML page contains the coding for the Form with various elements. The form may be a simple form with one or two fields or a complex one like the form for registering for a new Bank Account or new email account.
The module will first connect through the HTML page and will fetch the HTML code into a Text File so that the code can be further processed.
Could any body provide coding hint for thatYou're welcome. How about awarding them duke stars?
edit: cheers! -
How can i execute a .jar or .jad through java?
I want to execute a .jar like i do in SE using the class RunTime in ME does anybody know how can i do it? There is no method exec in MIDP Runtime API
I have a MIDlet that receives a jar file from another PDA using DatragramConection and FileConnection. It's working well. When i'm running my application i'll send the jar file to another aplication and this application should receive, execute and return the result. For example, if i have a simple program that prints Hello World. I'll send the program the other PDA will execute and then return a String. I have to call the jr file through java because my MIDlet wil be already running.
Could you understand my problem? -
How to create a folder through java
Hi All,
Can any one give the solution of my prob.
I want to create a folder in windows m/c through java programe .Is it possible.
If yes then kindly suggest me how...?
Thanks In advance
VikasString newFolderPath = "C:\\";
String newFolderName = "MyFolder";
String spoonFeeding = newFolderPath + newFolderName;
File f = new File(spoonFeeding);
f.mkDir(); -
How to send data to bam data object through java code
how to send data to bam data object through java code
I've made a suggestion in other thread: https://forums.oracle.com/thread/2560276
You can invoke BAM Webservices (Using Oracle BAM Web Services) or use JMS integration using Enterprise Message Sources (http://docs.oracle.com/cd/E17904_01/integration.1111/e10224/bam_ent_msg_sources.htm)
Regards
Luis Fernando Heckler -
How to read particular Sector and Block in Mifare 1k through Java?
Hi Friends..
Do you know how to read particular Sector and Block in Mifare 1K through Java?..
I've created the simple application that read data from Mifare 1K, but i've problem when i want to read the other sectors and blocks..
i tried to read the blocks by using this APDU command :
FF B0 00 00 10 //read data in Sector 0 and Block 0
FF B0 00 01 10 //read data in Sector 0 and Block 1
FF B0 00 02 10 //read data in Sector 0 and Block 2
FF B0 00 03 10 //read data in Sector 0 and Block 1How to read the other sectors and blocks?..
I've tried to read data in Sector 1 and Block 5, so i tried to send this APDU command : FF B0 01 05 10, but i got this error : *6986*
Actually, it doesn't matter if i use MifareWnd, but i want to create my own application that Read/Write From/into Mifare 1K..
Please help me regarding this..
Thanks in advance..
Edited by: Leonardo_Carreira on Mar 31, 2010 2:47 AM
Edited by: Leonardo_Carreira on Mar 31, 2010 2:50 AMHi Sidd,
You should check out the Example Finder under Hardware Input and Output»IMAQ»Signal Input and Output for examples of triggering in framegrabbers.
Stephen Meserve
National Instruments -
How to compile dunamically genrated java files through java program?
Hi, I have a requirement where i generate java files from WSDL dynamically using wsdl2java jaxbri. I need to compile these files dynamically on the fly and jar it. Everything should happen through java program. Bcos everything is dynamic here, no information is known (like dir, file names ...) until the runtime. Everything is user fed.
the directories may contain other directories with java files. its recursive
i tried com.sun.tools.javac.Main.. but either its not scaling to my needs or i donno how to wok with this.
is there any option to compile the java files as they are created thru JAXBRI (wsdl2java)?
any help is appreciated..
-smy requirement is :
i create java files from wsdl2java (axis).. i need to compile all the java files.. directories with in the directories (recursive)...
as bcos the the java files have inter-dependencies they have to be compiled as a bunch something like (java *.java). I donno how to do this in javac.Main tool
Once all these files are compiled i need to create a jar out of them
Any help is appreciated! -
How To Call HTML Page Through Java Swing Page ???....
Hi All ;
Please Can You Tell Me How To Call HTML Page Through Java Swing Page ....
Regards ;Hi,
you can use HTML fragments on a panel.
http://java.sun.com/docs/books/tutorial/uiswing/components/html.html
However, to integrate a browser you need 3rd party software like IceBrowser
If you Google for: HTML Swing
then you find many more hints
Frank -
How to create an Oracle DATABASE through Java Programming Language.. ?
How to create an Oracle DATABASE through Java Programming Language.. ?
Oracle database administrators tend to be control freaks, especially in financial institutions where security is paramount.
In general, they will supply you with a database, but require you to supply all the DDL scripts to create tables, indexes, views etc.
So a certain amount of manual installation will always be required.
Typically you would supply the SQL scripts, and a detailled installation document too.
regards,
Owen -
How to upload 20MB of file into MySQL through Java
Hi Friends
Anyone let me know how to upload 20MB of file into MySQL through Java programming, is there is any feature available, or any changes to be made in MySQL
Thanks
SellaDon't know. Ask the MySQL folks. This is not a Java issue.
-
How to find IP allocated to windows OS through java code
Hi,
I want to find no of IPs allocated to windows OS through java code. How i can do this.Please give me idea.
any help will be appricated.
Thanks in advance
Ravi AdhaYou can use the InetAddress class in the java.net package to find all the IP addresses of your computer.
-
How to store xml data into file in xml format through java program?
HI Friends,
Please let me know
How to store xml data into file in xml format through java program?
thanks......
can discuss further at messenger.....
Avanish Kumar Singh
Software Engineer,
Samsung India Development Center,
Bangalore--560001.
[email protected]Hi i need to write the data from an XML file to a Microsoft SQL SErver database!
i got a piece of code from the net which allows me to parse th file:
import java.io.IOException;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import org.apache.xerces.parsers.SAXParser;
import java.lang.*;
public class MySaxParser extends DefaultHandler
private static int INDENT = 4;
private static String attList = "";
public static void main(String[] argv)
if (argv.length != 1)
System.out.println("Usage: java MySaxParser [URI]");
System.exit(0);
String uri = argv[0];
try
XMLReader parser = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
MySaxParser MySaxParserInstance = new MySaxParser();
parser.setContentHandler(MySaxParserInstance);
parser.parse(uri);
catch(IOException ioe)
ioe.printStackTrace();
catch(SAXException saxe)
saxe.printStackTrace();
private int idx = 0;
public void characters(char[] ch, int start, int length)
throws SAXException
String s = new String(ch, start, length);
if (ch[0] == '\n')
return;
System.out.println(getIndent() + " Value: " + s);
public void endDocument() throws SAXException
idx -= INDENT;
public void endElement(String uri, String localName, String qName) throws SAXException
if (!attList.equals(""))
System.out.println(getIndent() + " Attributes: " + attList);
attList = "";
System.out.println(getIndent() + "end document");
idx -= INDENT;
public void startDocument() throws SAXException
idx += INDENT;
public void startElement(String uri,
String localName,
String qName,
Attributes attributes) throws SAXException
idx += INDENT;
System.out.println('\n' + getIndent() + "start element: " + localName);
if (localName.compareTo("Machine") == 0)
System.out.println("YES");
if (attributes.getLength() > 0)
idx += INDENT;
for (int i = 0; i < attributes.getLength(); i++)
attList = attList + attributes.getLocalName(i) + " = " + attributes.getValue(i);
if (i < (attributes.getLength() - 1))
attList = attList + ", ";
idx-= INDENT;
private String getIndent()
StringBuffer sb = new StringBuffer();
for (int i = 0; i < idx; i++)
sb.append(" ");
return sb.toString();
}// END PRGM
Now , am not a very good Java DEv. and i need to find a soln. to this prob within 1 week.
The next step is to write the data to the DB.
Am sending an example of my file:
<Start>
<Machine>
<Hostname> IPCServer </Hostname>
<HostID> 80c04499 </HostID>
<MachineType> sun4u [ID 466748 kern.info] Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 360MHz) </MachineType>
<CPU> UltraSPARC-IIi at 360 MHz </CPU>
<Memory> RAM : 512 MB </Memory>
<HostAdapter>
<HA> kern.info] </HA>
</HostAdapter>
<Harddisks>
<HD>
<HD1> c0t0d0 ctrl kern.info] target 0 lun 0 </HD1>
<HD2> ST38420A 8.2 GB </HD2>
</HD>
</Harddisks>
<GraphicCard> m64B : PCI PGX 8-bit +Accel. </GraphicCard>
<NetworkType> hme0 : Fast-Ethernet </NetworkType>
<EthernetAddress> 09:00:30:C1:34:90 </EthernetAddress>
<IPAddress> 149.51.23.140 </IPAddress>
</Machine>
</Start>
Note that i can have more than 1 machines (meaning that i have to loop thru the file to be able to write to the DB)
Cal u tellme what to do!
Even better- do u have a piece of code that will help me understand and implement the database writing portion?
I badly need help here.
THANX
Maybe you are looking for
-
I only ever activated one license for cs5 mac. Stuck using PC now. Help please.
Now I'm using a Wacom companion, and forced to operate windows on it. Isn't there something I can do or someone I can talk to in order to gain access on both operating systems?
-
I am no longer able to access iphoto. When I click on the icon. The screen opens but remains dark with the spinning icon continuing indefinately. In the light panel on the left hand side there is no list of albums or the library.
-
How do I build a photo album on win XP system?
I am awaiting my 32GB iPad, and want to set things up to load photos in albums. I have a win XP Pro machine, not a mac, thus no iPhoto on the computer, just the iPad. How can I group my individual photos into albums to load onto the iPad?
-
Settings for Purchase Order output using services for MM-SUS scenario?
Dear Gurus, I am configuring the service procurement classic and plan driven procurement for MM-SUS environment. We are on SAP SRM 7.01/ECC 6 EHP5. I need to maintain the below settings for PO output: 1. RUN transaction SWETYPV 2. IN the object types
-
Okay, I understand now that the port I thought was a mic port on my 2008 Macbook Pro is a line-in port. What I don't understand though is why my headset worked fine with it up until last week. Can anyone help me understand why this would be?