RAMSIS-CODE

Wednesday 3 April 2013

File handling though BufferedReader, Bufferwriter Class in java

package com.scannerclass;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public class IoEditFileEample {

    public static void main(String[] args) throws IOException {

        File f=new File("E:/Temp/appendOldFile.txt");
        if (!f.exists()) {
   f.createNewFile();
  }
        
        FileInputStream fs = null;
        InputStreamReader in = null;
        BufferedReader br = null;

        StringBuffer sb = new StringBuffer();

        String textinLine;
      
        
        try {
             fs = new FileInputStream(f);
             in = new InputStreamReader(fs);
             br = new BufferedReader(in);

            while(true)
            {
                textinLine=br.readLine();
                if(textinLine==null)
                    break;
                sb.append(textinLine);
            }
              String textToEdit1 = "";
              int cnt1 = sb.indexOf(textToEdit1);
              sb.replace(cnt1,cnt1+textToEdit1.length(),"New Append text");

              String textToEdit2 = "";
              int cnt2 = sb.indexOf(textToEdit2);
              sb.replace(cnt2,cnt2+textToEdit2.length(),"Second new edit text");

              fs.close();
              in.close();
              br.close();

            } catch (FileNotFoundException e) {
              e.printStackTrace();
            } catch (IOException e) {
              e.printStackTrace();
            }
            catch (Exception e) {
                e.printStackTrace();
              }

            try{
                FileWriter fstream = new FileWriter(f);
                BufferedWriter outobj = new BufferedWriter(fstream);
                outobj.write(sb.toString());
                outobj.close();

            }catch (Exception e){
              System.err.println("Error: " + e.getMessage());
            }
    }
}

In ArrayList setdata getdata Example in java

//---- You can use this example to understand how to set and get data in java --- //

package aman.sort;

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.util.*;

public class Run {

/**

* @param args

public static void main(String[] args) {

List dataBean = new ArrayList();

try {

String ch;

do{

DataBean bean = new DataBean();

ch="";

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

System.out.println("Enter the User :");

String name = br.readLine();

bean.setName(name);

System.out.println("Enter the Id :");

int id = (Integer.parseInt(br.readLine()));

bean.setId(id);

dataBean.add(bean);

System.out.println("Press 'y' for input again data... ");

ch = br.readLine();

}while((ch.equals("y"))||ch.equals("Y"));

}

catch(Exception e) {

System.out.println("Error occured due to input invalid data..."+e);

}

for(Object obj: dataBean) {

DataBean getbean = (DataBean)obj;

System.out.println("name is :"+getbean.getName()+"Id is:"+getbean.getId());

}

//=================================================

package aman.sort;

public class DataBean {

private int id;

private String name;

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

Simple HTML form with jquery validation

<html>

<a target ="_blank" href ="http://ramsis-code.blogspot.in">Aman Kumar's Blog</a><br>

<a target ="_blank" href ="http://ramsis-code.blogspot.in">Use latest code</a>

</center>

<head>

$(document).ready(function() {

function Reset(){

alert("hello");

$("#uname").val('');

$("#lname").val('');

$("#phone").val('');

$("#mdata").val('');

$("#emailid").val('');

$("#datepicker").val('');

$("#address").val('');

$("#city").val('');

$("#lblmsg").html('');

}

//$("#uname").live('blur', function() {

//var checklength = $(this).val().length;

// if(checklength === 0)

// {

// $("#uname").css('border-color','red');

// }

// else

// {

// $("#uname").css('border-color','');

// }

// });

$("#btnsubmit").click(function () {

if ($("#uname").val().length === 0) {

$("#lblmsg").text('Please enter the Name.');
$("#uname").focus();

//$("#uname").css('border-color','red');

return false;

}

else if($("#lname").val().length === 0){

$("#lblmsg").text('Please enter the Last Name.');
$("#lname").focus();

return false;

}

else if($("#phone").val().length === 0){

$("#lblmsg").text('Please enter the Phone.');

return false;

}

else if($("#mdata").val().length === 0){

$("#lblmsg").text('Please enter the date.');

return false;

}

else if($("#emailid").val().length === 0){

$("#lblmsg").text('Please enter the email id.');

return false;

}

else if($("#datepicker").val().length === 0){

$("#lblmsg").text('Please enter the date.');

return false;

}

else if($("#address").val().length === 0){

$("#lblmsg").text('Please enter the address.');

return false;

}

else if($("#city").val().length === 0){

$("#lblmsg").text('Please enter the city.');

return false;

}

});

</script>

</head>

<body>

<tbody>

<tr>

</tr>

<tr>

</td>

<tbody>

<tr><td width="10%">Phone Number </td> <td width="70%"><input type="text" value="+91 " name="phone" id="phone" /></td></tr>

<tr><td width="10%">Email Id </td> <td width="70%"><input type="text" name="emailid" id="emailid"/></td></tr>

<tr><td width="10%">Address</td> <td width="70%"><input type="text" name="address" id="address"/></td></tr>

<tr>

</td>

</tr>

</tbody>

</table>

</form>

</td>

</tr>

<tr>

</tr>

</tbody>

</table>

</body>

</html>

Tuesday 2 April 2013

Ajax Call onkeyup Event in jsp

// ---------- Save as index.jsp --------------------- //

<%@ page import="java.util.*" %>

<%@ page import="java.sql.*" %>

<%@ page import="java.io.*" %>

<%@ page import="java.text.*" %>

Connection con = null;

ResultSet rs = null;

Statement stmt = null;

Class.forName("net.sourceforge.jtds.jdbc.Driver");

con = DriverManager.getConnection("jdbc:jtds:sqlserver://192.168.7.128:1433/amantrn","sa","abcd");

stmt = con.createStatement();

<%-- <% --%>

var xmlHttp;

function modifyData(Str) {

var versionIds = [ "Msxml2.XMLHTTP", "Microsoft.XMLHTTP",

"Microsoft.XMLDOM", "Msxml2.XMLHTTP.6.0", "Msxml2.XMLHTTP.5.0",

"Msxml2.XMLHTTP.4.0", "Msxml2.XMLHTTP.3.0",

"Msxml2.XMLHTTP.2.6", "Microsoft.XMLHTTP.1.0",

"Microsoft.XMLHTTP.1" ];

if (typeof XMLHttpRequest != "undefined") {

xmlHttp = new XMLHttpRequest();

} else if (window.ActiveXObject) {

for ( var i = 0; i < versionIds.length; i++) {

try {

return new ActiveXObject(versionIds[i]);

} catch (e) {

alert("Browser does not support XMLHTTP Request");

}

new XDomainRequest();

}

if (xmlHttp == null) {

alert("Browser does not support XMLHTTP Request");

return;

}

var url = "modify.jsp?";

url += "id=" + Str;

url += "&sid=" + Math.random();

xmlHttp.onreadystatechange = stateChange;

xmlHttp.open("POST", url, true);

xmlHttp.send(null);

function stateChange() {

if (xmlHttp.readyState == 4 || xmlHttp.readyState == "complete") {

var abc = xmlHttp.responseText.split("~");

//alert(abc);

document.getElementById('id').value = abc[0];//id

document.getElementById('name').value = abc[1];//Username

document.getElementById('pass').value = abc[2];//Password

document.getElementById('email').value = abc[3];//Email

//document.getElementById("id").value = abc[4];//Profile

}

</script>

<table>

<tr>

</tr>

<tr>

</tr>

<tr>

<td>Password:</td>

</tr>

<tr>

<td>Email:</td>

</tr>

<tr>

</tr>

</table>

// ---------------- Save as modify.jsp ----------------- //

<%@ page import="java.util.*" %>

<%@ page import="java.sql.*" %>

<%@ page import="java.io.*" %>

<%@ page import="java.text.*" %>

Connection con = null;

ResultSet rs = null;

Statement stmt = null;

Class.forName("net.sourceforge.jtds.jdbc.Driver");

con = DriverManager.getConnection("jdbc:jtds:sqlserver://192.168.7.128:1433/amantrn","sa","abcd");

stmt = con.createStatement();

String id = request.getParameter("id").trim();

String Query1="SELECT [id],[username],[password],[email],[profile] FROM [admin] where id like '"+id+"%' ";

stmt = con.createStatement();

ResultSet rs1 = stmt.executeQuery(Query1);

while(rs1.next()){

<%=rs1.getString("id").trim()%>~<%=rs1.getString("username")%>~<%=rs1.getString("password")%>~<%=rs1.getString("email")%>~

<% }%>

Div hide using Jquery

<html>

<head>

<style>

#divid {

background: Red;

padding: 20px 20px 20px;

position: relative;

border-top: solid 2px #000000;

}

#divid #deleteid {

position: absolute;

top: 20px;

right: 20px;

cursor: pointer;

}

</style>

$(document).ready(function(){

$('#chkno').click(function() {

// $('#divid').slideUp ('slow');

//$("#divid").animate({ opacity: 'hide' }, "slow");

$("#divid").fadeOut('medium');

})

$('#chkyes').click(function() {

// $('#divid').slideDown('slow');

$("#divid").fadeIn('medium');

})

});

</script>

</head>

<body>

<form>

<input type="radio" id ="chkno" name="radio" value="no" /> no

<h3>If you click yes. 'Div' will show</h3>

<H3>if you click no. then 'Div' will hide </H3>

</div>

</form>

</body>

</html>

Constructor Calling in java

// ----------- Constructor Calling in java --------------//

class Acun{

Acun(){

System.out.println("Super Class Constructor is print...");

}

class Bcun extends Acun{

Bcun(){

System.out.println("B sub class constructor is print...");

}

class Ccun extends Bcun{

Ccun(){

System.out.println("C sub class constructor is print...");

}

class Constructor_Call {

public static void main(String args[]){

Ccun c = new Ccun();

// new Ccun();

}

//---------------------------------------

Answer is:

Super Class Constructor is print...

B sub class constructor is print...

C sub class constructor is print...

Use of Comparator class for sorting ArrayList Objects

// ---------- Use of Comparator class for sorting ArrayList ------------ //

import java.util.*;

public class SortByComparator {

Integer empcode;

String name;

public SortByComparator(){

empcode = 1001;

name = "chetan";

}

public SortByComparator(int empcode, String name ){

this.empcode = empcode;

this.name = name;

}

public String toString(){

return "Emp code is:"+empcode+"Emp name is:"+name;

}

class SortByName implements Comparator <SortByComparator>{

public int compare(SortByComparator o1, SortByComparator o2){

return o1.name.compareToIgnoreCase(o2.name);

}

class SortByEmpCode implements Comparator <SortByComparator>{

public int compare(SortByComparator o1, SortByComparator o2){

return o1.empcode.compareTo(o2.empcode);

}

class SortRun{

public static void main(String args[]){

List <SortByComparator> l = new ArrayList <SortByComparator>();

l.add(new SortByComparator());

l.add(new SortByComparator(9002,"Brijaes"));

l.add(new SortByComparator(2004,"kapil"));

l.add(new SortByComparator(1005,"Aman Kumar"));

l.add(new SortByComparator(2001,"suraj"));

System.out.println("\nBefore Sorting:"+l);

Collections.sort(l, new SortByName());

//Collections.sort(l, new SortByEmpCode());

System.out.println("\nAfter sorting:"+l);

}

// Sorting of Srting and Integer Arraylist use of Comparator Interface

package TestCollection;
import java.util.*;

public class Sample1 {

public static void main(String args[]){

List <Integer> list = new ArrayList <Integer>();
list.add(10);
list.add(200);
list.add(50);
list.add(26);
list.add(15);
list.add(80);
list.add(40);
list.add(30);

List <String> list1 = new ArrayList <String> ();

list1.add("Deepak");
list1.add("manoj");
list1.add("Aman");
list1.add("vijay");
list1.add("Brijesh");
list1.add("Amit");
list1.add("chetan");

Collections.sort(list,new MyIntComparable());
for(Integer integer : list){
System.out.println(integer);
}

Collections.sort(list1, new MyStringComparable());
for(String string : list1){
System.out.println(string);
}
}
}

class MyIntComparable implements Comparator <Integer>{

public int compare(Integer o1, Integer o2){

return (o1<o2 ? -1 : (o1==o2 ? 0 : 1));
}
}
class MyStringComparable implements Comparator <String>{
public int compare(String s1, String s2){
return s1.compareToIgnoreCase(s2);
//return (s1<s2 ? -1 : (s1==s2 ? 0 : 1));
}
}

Pages

Wednesday 3 April 2013

File handling though BufferedReader, Bufferwriter Class in java

In ArrayList setdata getdata Example in java

Simple HTML form with jquery validation

Tuesday 2 April 2013

Ajax Call onkeyup Event in jsp

Div hide using Jquery

Constructor Calling in java

Use of Comparator class for sorting ArrayList Objects