Yearly Archives: 2012

How to check duplicated value in array


package com.test; import java.util.Set; import java.util.HashSet; public class CheckDuplicate { public static void main(String args[]) { String [] sValue = new String[]{“a”,”b”,”c”,”d”,””,””,”e”,”a”}; if(checkDuplicated_withNormal(sValue)) System.out.println(“Check Normal : Value duplicated! \n”); if(checkDuplicated_withSet(sValue)) System.out.println(“Check Set : Value duplicated! \n”); } //check duplicated value

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Posted in JAVA

How to create XML file in Java


package com.test; import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Attr; import org.w3c.dom.Document; import org.w3c.dom.Element; public class CreateXMLInJava { public static void main(String argv[]) { CreateXMLInJava createXml = new

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Posted in JAVA, XML

Read Excel file in Java using POI API


import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.Iterator; public class ReadExcelFileUsingPOI{     public static void main(String[] args) throws Exception {         String filename = “D:\\test.xls”;         FileInputStream fis = null;         try {             fis = new FileInputStream(filename);             HSSFWorkbook workbook = new HSSFWorkbook(fis);             HSSFSheet sheet = workbook.getSheetAt(0);             Iterator rows = sheet.rowIterator();             while (rows.hasNext()) {                 HSSFRow row = (HSSFRow) rows.next();                 Iterator cells

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Posted in JAVA, POI API

Percentage Calculation in Java


import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public final class Percent { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println(“enter the total no.of sub”); int n = Integer.parseInt(br.readLine()); int marks[] = new int[n]; int

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Posted in JAVA

How to Create Excel file in Java using POI API


import java.io.FileOutputStream; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; public class CreateExcelFile { public static final String FILE_NAME = “D:\\test.xls”; public void createExcelFile(String filename) { try { HSSFWorkbook hwb = new HSSFWorkbook(); HSSFSheet sheet = hwb.createSheet(“Sheet1”);   HSSFRow rowhead = sheet.createRow((short)

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Posted in POI API

Marker or Tag Interface in Java


An interface is called a marker interface when it is provided as a handle by java interpreter to mark a class so that it can provide special behaviour to it at runtime and they do not have any method declarations.

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Posted in JAVA, SCJP

Hyderabad buetyness – Hussan Sagar


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Posted in About

Does men likes facebook than girl friend?


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Posted in Polls

How to fix ICE faces browser compatibility issues


Resolving the browser compatibility issues while developing the web applications is a bit complex. Most of the times developer tries to write the browser specific code. But, it is not possible to implement the browser specific code for all the

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Posted in JSF

equals() and hashCode() methods of Object Class


HashTable, HashMap and HashSet are the Collection classes in java.util package that make use of hashing algorithm to store objects. In all these Collection classes except HashSet, objects are stored as key-value pairs. For the storage and the retrieval of

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Posted in JAVA

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Mallikarjun Gunda

This is Mallikarjun Gunda, I am working as a software professional. Blogging is my Passion. This blog contains the posts on Java related technologies and programming languages. I am happy to share my knowledge through the blogs.

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