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 Below is the code for MySQL connection in JAVA import java.sql.Connection; import java.sql.DriverManager; public class TestMySql { public static Connection con = null; public static void main(String[] args) { try{   String host = "";         String uName = "";         String uPass= "";        Class.forName("com.mysql.cj.jdbc.Driver");   con = DriverManager.getConnection(host, uName, uPass); System.out.println("Connection Successful..."); con.close();   } catch(Exception e) {  System.out.println(e);}   } }

Below is the code for File Comparison in JAVA:  import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException;   public class CompareTextFiles {     public static void main(String[] args) throws IOException     {         BufferedReader reader1 = new BufferedReader(new FileReader("C:\\FileCompare\\File1.txt"));                   BufferedReader reader2 = new BufferedReader(new FileReader("C:\\FileCompare\\File2.txt"));                   String line1 = reader1.readLine();                   String line2 = reader2.readLine();                   boolean areEqual = true;                   int lineNum = 1;                   while (line1 != null || li...

  import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; import java.util.Scanner; public class Multiple_Files_Creation_logic { public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub int totalCount = 1001; //userinput String filePath = "C:\\Users\\vmalge\\Desktop\\Test"; String fileName= "V_SHPT_OFR_MDCTEST4_"; String fileType = "csv"; File input = new File(filePath+fileName+"."+fileType);                   for(int counter = 1; counter < totalCount; counter++){     //int size = 250;     //tbd     File myFile = new File("C:\\Test\\result"+fileName+counter+"."+fileType);                                try { ...

 Email monitoring in JAVA. Here is the code: import java.util.Properties; import javax.activation.DataHandler; import javax.activation.DataSource; import javax.activation.FileDataSource; import javax.mail.Authenticator; import javax.mail.BodyPart; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.PasswordAuthentication; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.AddressException; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; public class MonitoringMail { //public static void sendMail(String mailServer, String from,String username, String password,String port, String[] to, String subject, String messageBody, String attachmentPath, String attachmentName) throws MessagingException, AddressException public void sendMail(String mailServer, String from, String[] to, String subject, String mess...

 import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.util.Calendar; import org.apache.poi.common.usermodel.HyperlinkType; import org.apache.poi.hssf.usermodel.HSSFDateUtil; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.CellType; import org.apache.poi.ss.usermodel.FillPatternType; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFCreationHelper; import org.apache.poi.xssf.usermodel.XSSFFont; import org.apache.poi.xssf.usermodel.XSSFHyperlink; import org.apache.poi.xssf.usermodel.XSSFRow; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; public class ExcelReader { public  String path; public  FileInputStream fis = null; public  FileOutputStream fi...

 Java Star Pattern Programs: ================================================================= Patterns 1:  package javaPrograms; public class StarPattern { public static void main(String[] args) { //i for rows and j for columns       //row denotes the number of rows you want to print   int i, j, row=6;    //outer loop for rows   for(i=0; i<row; i++)    {    //inner loop for columns   for(j=0; j<=i; j++)    {    //prints stars    System.out.print("* ");    }    //throws the cursor in a new line after printing each line   System.out.println();    }      } } ================================================================= Pattern 2:  package javaPrograms; public class StarPattern1 { public static void main(String[] args) { for(int i=1;i<=4;i++) { ...