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Showing posts from September 22, 2013

We need to write the function to check the password entered is correct or based on the following conditions..

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a) It must have atleast one lower case character and one digit. b)It must not have any Upper case characters c) length should be b/w 5-12. d) It should not have any same immediate patterns like abcanan1 : not acceptable coz of an an pattern abc11se: not acceptable, coz of pattern 11 123sd123 : acceptable, as not immediate pattern adfasdsdf : not acceptable, as no digits Aasdfasd12: not acceptable, as have uppercase character Solution : package assignment1; import java.util.Scanner; /**  * @author Snlkjha  */ public class ValidPassword {   /*It must have atleast one lower case character*/   public static boolean islower(String password){     char pass[]=password.toCharArray();     for(int i=0;i<pass.length;i++)         if((int)pass[i]>=97 &&(int)pass[i]<=122) return true;       return false; } /*It must not have any Upper case characters*/ public static boolean isup...
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A string of characters is given.Find the highest occurrence of a character and display that character.

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eg.: INPUT: AEGBCNAVNEETGUPTAEDAGPE OUTPUT: E or I,J(if equal occurance) package assignment1; /*  * @author snlkjha  */ public class Charfreq {         public static void charFreq(String x){                 String toUpperCase = x.toUpperCase();   /*If the given string is in lower case or mixed case , convert it into upper case.*/         char y[]=toUpperCase.toCharArray();         int freq[]=new int[26],max=0;         for(int i=0;i<y.length;i++) ++freq[(int)y[i]-65];         System.out.println("________________________________________");         for(int i=0;i<y.length;i++)             if(freq[i]!=0)  System.out.println((char)(i+65)+" "+freq[i]);         for(int i=1;i<freq.length;i++)  max=freq[max]<freq[i]?i:max;   ...
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Code to upload multiple files simultaneously using JSP, Servlet .

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Image
Step 1 : Create a jsp page. index.jsp <%--      Document   : index     Created on : 21 Sep, 2013, 5:58:32 PM     Author     : snlkjha --%> <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html> <html>     <head>         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">         <title>JSP Page</title>     </head>     <body>         <form action="UploadServlet" method="post" enctype="multipart/form-data">             <input type="file" id="file" name="file1" accept="image/*"  multiple="muliple" required/><br>             <input type="submit"/>            <br><br> ${requestScope.message} ...
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Code to create Zip file using Java .

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/*  * To change this template, choose Tools | Templates  * and open the template in the editor.  */ package Java_Classes; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; /**  *  * @author snlkjha  */ public class Zip {     public static void zipFolder(String srcFolder) throws Exception {         FileOutputStream fileWriter = new FileOutputStream(srcFolder + ".zip");         ZipOutputStream zip = new ZipOutputStream(fileWriter);         addFolderToZip("", srcFolder, zip);         zip.flush();         zip.close();     }     private static void addFolderToZip(String path, String srcFolder, ZipOutputStream zip) throws Exception {         File folder = new File(srcFolder);   ...
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