Java

Hi guys)

I'm just starting to learn Java and I want to become a Java developer. I don’t know what I should learn with Java to be able to get a job. Do you have any suggestions? 

<root>
<name>String</name>
<description>String</description>
</root>

<root>
<name>Test</name>
<description></description> <!-- it is an empty node -->
</root>

import org.custommonkey.xmlunit.Diff;
import org.custommonkey.xmlunit.Difference;
import org.custommonkey.xmlunit.IgnoreTextAndAttributeVal uesDifferenceListener;
import org.custommonkey.xmlunit.XMLUnit;

public static void main(String args[]) throws FileNotFoundException,
SAXException, IOException, ParserConfigurationException, XPathExpressionException {

String strSource = "<root><name>String</name><description>String</description></root>";
String strTest = "<root><name>Test</name><description></description></root>";

Document docSource = stringToXMLDocument(strSource);
Document docTest = stringToXMLDocument(strTest);

boolean result = isMatched(docSource, docTest);
if(result){
System.out.println("Matched!");
}else{
System.out.println("Un-matched!");
}
}
public static boolean isMatched(Document xmlSource, Document xmlCompareWith) {
XMLUnit.setIgnoreWhitespace(true);
XMLUnit.setIgnoreComments(true);
XMLUnit.setIgnoreAttributeOrder(true);

XMLUnit.setNormalizeWhitespace(true);
XMLUnit.setIgnoreDiffBetweenTextAndCDATA(true);

Diff myDiff = new Diff(xmlSource, xmlCompareWith);
myDiff.overrideDifferenceListener(new IgnoreTextAndAttributeValuesDifferenceListener());
return myDiff.similar();
}

public static Document stringToXMLDocument(String str) throws ParserConfigurationException, SAXException, IOException{
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
docBuilderFactory.setNamespaceAware(true);

DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document document = docBuilder.parse(new InputSource(new StringReader(str)));

return document;
}

<dependency>
<groupId>xmlunit</groupId>
<artifactId>xmlunit</artifactId>
<version>1.6</version>
</dependency>

import java.util.Scanner;   // Needed for Scanner class
import java.io.*;           // Needed for File class
 
/**
   This program reads the first line from a file.
*/
 
public class ReadFirstLine
{
   public static void main(String[] args) throws IOException
   {
      // Create a Scanner object for keyboard input.
      Scanner keyboard = new Scanner(System.in);
 
      // Get the file name.
      System.out.print("Enter the name of a file: ");
      String filename = keyboard.nextLine();
 
      // Open the file.
      File file = new File(filename);
      Scanner inputFile = new Scanner(file);
 
      // Read the first line from the file.
      String line = inputFile.nextLine();
 
      // Display the line.
      System.out.println("The first line in the file is:");
      System.out.println(line);
 
      // Close the file.
      inputFile.close();
   }
}

<pre>public static void PDF_File_Validation(String object, String data) throws IOException{
       try{
       Log.info("PDF Documents has been Verified");
       List<String> outputs = new ArrayList<String>();
       
     

       
    System.setProperty("webdriver.chrome.driver", Constants.Path_driver);

    WebDriver driver = new ChromeDriver();
       
    File[] files = new File(object).listFiles(File::isFile);
    
        for (File file: files) {
       
    String fileExtension = file.getName().split("\\.")[file.getName().split("\\.").length - 1];
       
       if (fileExtension.toLowerCase().equals("pdf")) {
               
    String fileUrl = "file:///" + file.getAbsolutePath();
       
    driver.get(fileUrl);
       

    URL url = new URL(driver.getCurrentUrl());
   
    InputStream is = url.openStream();
   
    BufferedInputStream fileToParse = new BufferedInputStream(is);

    PDDocument document = null;
   
    String output;
       

    try {
         document = PDDocument.load(fileToParse);
         output = new PDFTextStripper().getText(document);
                
         } finally {
                if (document != null) {
                    document.close();
                }
                fileToParse.close();
                is.close();
                }
            
                outputs.add(output);
                Thread.sleep(2500);
                boolean test = output.contains(data);
                String test1=Boolean.toString(test);
                FileInputStream file1 = new FileInputStream(Constants.Path_Result+DriverScript.s+"\\PDFResults.xlsx");
                @SuppressWarnings("resource")
                    XSSFWorkbook workbook = new XSSFWorkbook(file1);
                XSSFSheet sheet = workbook.getSheetAt(0);
                Row row1 = sheet.createRow( 0 );
                if (test1.contains("false")){
                    Log.info("The "+file.getName()+" File does not Contain "+ data+"="+"Failed");
               // System.out.println ("The ["+file.getName()+" File Containes "+ data+"="+output.contains("data"));
                }else{
                    Log.info("The "+file.getName()+" File Containes "+ data+"="+"Passed");
                }
                for ( int cellIndex = 0; cellIndex < output.length(); cellIndex++ ) {
                        Cell cell = row1.createCell( cellIndex );
                        if (test1.contains("false")){
                          cell.setCellValue("The "+file.getName()+" File does not Contain "+ data+"="+"Failed");
                }else{
                   cell.setCellValue("The "+file.getName()+" File Containes "+ data+"="+"Passed");
                    }
                       // System.out.println ("The ["+file.getName()+" File Containes "+ data+"="+output.contains("data"));
                        
                        //System.out.println(cell.getStringCellValue());
                    }
                

                file1.close();


                FileOutputStream outFile =new FileOutputStream(Constants.Path_Result+DriverScript.s+"\\PDFResults.xlsx");
                workbook.write(outFile);
                outFile.close();
    
                    
        }}
       
   driver.quit();
   return;
       
   }catch(Exception e){
              
   Log.error("PDF Documents was not Verified --- " + e.getMessage());
   DriverScript.bResult = false;
       }
       }

<pre>public static void PDF_File_Validation(String object, String data) throws IOException{
       try{
       Log.info("PDF Documents has been Verified");
       List<String> outputs = new ArrayList<String>();
       
     

       
    System.setProperty("webdriver.chrome.driver", Constants.Path_driver);

    WebDriver driver = new ChromeDriver();
       
    File[] files = new File(object).listFiles(File::isFile);
    
        for (File file: files) {
       
    String fileExtension = file.getName().split("\\.")[file.getName().split("\\.").length - 1];
       
       if (fileExtension.toLowerCase().equals("pdf")) {
               
    String fileUrl = "file:///" + file.getAbsolutePath();
       
    driver.get(fileUrl);
       

    URL url = new URL(driver.getCurrentUrl());
   
    InputStream is = url.openStream();
   
    BufferedInputStream fileToParse = new BufferedInputStream(is);

    PDDocument document = null;
   
    String output;
       

    try {
         document = PDDocument.load(fileToParse);
         output = new PDFTextStripper().getText(document);
                
         } finally {
                if (document != null) {
                    document.close();
                }
                fileToParse.close();
                is.close();
                }
            
                outputs.add(output);
                Thread.sleep(2500);
                boolean test = output.contains(data);
                String test1=Boolean.toString(test);
                FileInputStream file1 = new FileInputStream(Constants.Path_Result+DriverScript.s+"\\PDFResults.xlsx");
                @SuppressWarnings("resource")
                    XSSFWorkbook workbook = new XSSFWorkbook(file1);
                XSSFSheet sheet = workbook.getSheetAt(0);
                Row row1 = sheet.createRow( 0 );
                if (test1.contains("false")){
                    Log.info("The "+file.getName()+" File does not Contain "+ data+"="+"Failed");
               // System.out.println ("The ["+file.getName()+" File Containes "+ data+"="+output.contains("data"));
                }else{
                    Log.info("The "+file.getName()+" File Containes "+ data+"="+"Passed");
                }
                for ( int cellIndex = 0; cellIndex < output.length(); cellIndex++ ) {
                        Cell cell = row1.createCell( cellIndex );
                        if (test1.contains("false")){
                          cell.setCellValue("The "+file.getName()+" File does not Contain "+ data+"="+"Failed");
                }else{
                   cell.setCellValue("The "+file.getName()+" File Containes "+ data+"="+"Passed");
                    }
                       // System.out.println ("The ["+file.getName()+" File Containes "+ data+"="+output.contains("data"));
                        
                        //System.out.println(cell.getStringCellValue());
                    }
                

                file1.close();


                FileOutputStream outFile =new FileOutputStream(Constants.Path_Result+DriverScript.s+"\\PDFResults.xlsx");
                workbook.write(outFile);
                outFile.close();
    
                    
        }}
       
   driver.quit();
   return;
       
   }catch(Exception e){
              
   Log.error("PDF Documents was not Verified --- " + e.getMessage());
   DriverScript.bResult = false;
       }
       }