Java file

hi all
i've a file called one.txt which has
java developer
swing developer
struts developer
J2EE course
i've got four lines in tat file........... my doubt is how do i read the third line of this file (struts developer)... how do i do it?? anyone help me out dis
Note : file content may varies.........

you read the first line
you read the second line
you read the third line
Done !
Little sideremark: Where you use doubt you probably meant to say question. Those 2 words are easily mixed up. doubt means you are not sure about, question is you ask for information about

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I am trying to use java file as Model layer and jsf as presentation layer

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I create java file
package oracle.model;
import java.sql.;*
import java.util.;*
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Statement ps;
ResultSet rs;
private List perInfoAll = new ArrayList();
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String uname;
String firstName;
String lastName;
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this.firstName = firstName;
this.lastName = lastName;
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return uname;
*public String getFirstName() {*
return firstName;
*public String getLastName() {*
return lastName;
right click on the file and choose 'create data control'
then i wrote the jsf file:
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*<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>*
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var="item" bgcolor="#F1F1F1" border="10"
cellpadding="5" cellspacing="3" rows="4" width="50%"
dir="LTR" frame="hsides" rules="all"
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*</f:facet>*
*<h:column id="c2">*
*<f:facet name="header">*
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*</f:facet>*
*<h:outputText style="" value="#{item.firstName}"*
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*<h:column id="c4">*
*<f:facet name="header">*
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*</f:facet>*
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*</h:column>*
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i dragged the "perInfoAll" from my "Data Controls" and choosed adf table (even I know that new table with adf tags well be generated and i want table with jsf tags)
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*<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"*
*"http://www.w3.org/TR/html4/loose.dtd">*
*<%@ page contentType="text/html;charset=UTF-8"%>*
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*selectionListener="#{bindings.perInfoAll1.collectionModel.makeCurrent}"*
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*label="#{bindings.perInfoAll1.hints.uname.label}"*
*required="#{bindings.perInfoAll1.hints.uname.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.uname.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.uname.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.uname.tooltip}"*
*id="it3">*
*<f:validator binding="#{row.bindings.uname.validator}"/>*
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*</af:column>*
*<af:column sortProperty="firstName" sortable="false"*
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*id="c2">*
*<af:inputText value="#{row.bindings.firstName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.firstName.label}"*
*required="#{bindings.perInfoAll1.hints.firstName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.firstName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.firstName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.firstName.tooltip}"*
*id="it2">*
*<f:validator binding="#{row.bindings.firstName.validator}"/>*
*</af:inputText>*
*</af:column>*
*<af:column sortProperty="lastName" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.lastName.label}"*
*id="c3">*
*<af:inputText value="#{row.bindings.lastName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.lastName.label}"*
*required="#{bindings.perInfoAll1.hints.lastName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.lastName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.lastName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.lastName.tooltip}"*
*id="it1">*
*<f:validator binding="#{row.bindings.lastName.validator}"/>*
*</af:inputText>*
*</af:column>*
*</af:table>*
*</af:form>*
*</af:document>*
*</f:view>*
but when run it i see the following errors
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
:(

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Import statement in .java files and .jsp files ..correction

Guys I have few mysteries about this import statement.
Please correct me if I am wrong.
1)Suppose if I have a folder c:\SourceFolder it has one.java and two.java files.If I compile one.java then one.class files is created in c:\ClassFolder .Now two.java uses one of the method of one.java,and without using import statement in two.java I am able to compile two.java, and two.class file is created in c:\ClassFolder.I assume that the path of one.class was taken from the CLASSPATH environment variable,hence I there was no need for import statement .........am i right ?
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What you've done is a little different. I'm assuming a couple of things:
1. you have no package declaration at the top of one.java or two.java
2. you have the current directory "." in your classpath.
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<h1><a href="http://fancyapps.com/fancybox/">Fancybox2</a> Viewer with images</h1>

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</html>I wanted to print the name field extracted from database by ResultSet.
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i am using netbeans ide.

Very bad approach
1) Think if your table contains more than one NAMEs then you will get only the last one with your code.
2) Your String is declared as local variable in the method.
3) You have not created any object of NewClass nor called the method in JSP page. Then who will call the method to run sql?
4) Your NewClass contains main method which will not work in web application, it's not standalone desktop application so remove main.
Better create an ArrayList and then call the method of NewClass and then store the data into ArrayList and return the ArrayList.
It should look like
{code:java}
package ris;
import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
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<code class="jive-code jive-java">    }

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* @exception ModuleException if a business logic rule is violated
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Connection con = null;
try
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String sql = "SELECT * from user WHERE userid = ? AND password= ?";
PreparedStatement ps = null;
ResultSet rs = null;
try {
if (con.isClosed()) {
throw new IllegalStateException("error.con.isClosed");
ps = con.prepareStatement(sql);
ps.setString(1,username);
ps.setString(2,password);
rs = ps.executeQuery();
String returnstr="";
while(rs.next())
returnstr=rs.getString("role");
java.lang.System.out.println(returnstr);
return returnstr;
} catch (SQLException e) {
e.printStackTrace();
throw new RuntimeException("error.ps.executeQuery");
} finally {
try {
if (ps != null)
ps.close();
if (rs != null)
rs.close();
} catch (SQLException e) {
e.printStackTrace();
throw new RuntimeException("error.rs.close");
catch (SQLException e)
e.printStackTrace();
throw new RuntimeException("Unable to get connection.");
finally
try
if (con != null)
con.close();
catch (SQLException e)
throw new RuntimeException(e.getMessage());
}

You can use PreparedStatement and
String cmd = "select * from PP where role=?";
PreparedStatement stmt = conn.prepareStatement(cmd);
stmt.setString(1,theRole);

How to convert a .class file into .java file without .jad using DeJDecompil

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I am using DeJDecompiler and working with swing applications.If I try to convert a .class file into .java file,it is converting into .jad file only.Fine but if I try to save that file into .java file,It is giving lot of errors in that program.When I went into that program the total style of the program is changed and TRY-CATCH block is not recognised by the dejdecompiler,hence If I try to include some methods in the existing .java file thus got,I could not do.Kindly help me.
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Thanks in advance
With kind Regs
Satheesh.K

Not so urgent today then!
http://forum.java.sun.com/thread.jsp?thread=553576&forum=31&message=2709757
I'm still not going to help you to steal someone�s code.

Convert .class files into .java files???

Does anybody know how to convert x.class file back to a x.java file. Or in other terms, extract .java files from a jarfile??
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Does anybody know how to convert x.class file back to a x.java file.As Dr.Clap said, that's decompiling.
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plz. mail me ans. on [email protected] | [email protected]

Yes there are many Java Decompilers which converts the Java bytecode class files to Source files, You may find the follwing URLs helpful:
http://www.brouhaha.com/~eric/computers/mocha.html
http://members.fortunecity.com/neshkov/dj.html

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