Answers for "java file reader"

1

reading from a text file in java

public static void main(String[] args) throws Exception 
  { 
    // pass the path to the file as a parameter 
    FileReader fr = new FileReader("C:\\Users\\pankaj\\Desktop\\test.txt"); 
  
    int i; 
    while ((i=fr.read()) != -1) 
      System.out.print((char) i); 
  }
Posted by: Guest on October-12-2020
2

open file java

import java.io.*;

public class openFile {

    public static void main(String[] args) {
        try{
            File file = new File("C:\\file.txt");
        }catch(Exception e){
            e.printStackTrace();
        }
    }
    
}
Posted by: Guest on October-22-2020
0

java xml reader

package com.mkyong.seo;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;
import java.io.File;

public class ReadXMLFile {

  public static void main(String argv[]) {

    try {

    File fXmlFile = new File("/Users/mkyong/staff.xml");
    DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
    Document doc = dBuilder.parse(fXmlFile);
            
    //optional, but recommended
    //read this - http://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work
    doc.getDocumentElement().normalize();

    System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
            
    NodeList nList = doc.getElementsByTagName("staff");
            
    System.out.println("----------------------------");

    for (int temp = 0; temp < nList.getLength(); temp++) {

        Node nNode = nList.item(temp);
                
        System.out.println("\nCurrent Element :" + nNode.getNodeName());
                
        if (nNode.getNodeType() == Node.ELEMENT_NODE) {

            Element eElement = (Element) nNode;

            System.out.println("Staff id : " + eElement.getAttribute("id"));
            System.out.println("First Name : " + eElement.getElementsByTagName("firstname").item(0).getTextContent());
            System.out.println("Last Name : " + eElement.getElementsByTagName("lastname").item(0).getTextContent());
            System.out.println("Nick Name : " + eElement.getElementsByTagName("nickname").item(0).getTextContent());
            System.out.println("Salary : " + eElement.getElementsByTagName("salary").item(0).getTextContent());

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

}
Posted by: Guest on November-07-2020
0

read java reader

Attempts to read characters into the specified character buffer. 
  The buffer is used as a repository of characters as-is: the only changes
  made are the results of a put operation. No flipping or rewinding of the
  buffer is performed.
Posted by: Guest on September-27-2021

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