How to get current date and time in java

import java.time.format.DateTimeFormatter;  
import java.time.LocalDateTime;    
public class CurrentDateTimeExample1 {    
  public static void main(String[] args) {    
   DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");  
   LocalDateTime now = LocalDateTime.now();  
   System.out.println(dtf.format(now));  
  }    
}   

// how to get current date and time in java 
// using Date class and System.currentTimeMillis() method
import java.util.Date;
public class UsingDateClass
{
   public static void main(String[] args) 
   {
      Date dt = new Date();
      System.out.println(dt);
      long milliSeconds = System.currentTimeMillis();  
      Date date = new Date(milliSeconds);
      System.out.println(date); 
   }
}

// get current date and timein java using Calendar.getTime() method
import java.util.Calendar;
import java.util.Date;
public class UsingCalendarClass
{
   public static void main(String[] args)
   {
      Date date = Calendar.getInstance().getTime();
      System.out.println(date);
   }
}

// get current date and time in java using LocalDateTime.now() method
import java.time.LocalDateTime;
public class UsingLocalDateTime
{
   public static void main(String[] args)
   {
      System.out.println(LocalDateTime.now());
   }
}

// get current date and time in java using LocalDate.now() method
import java.time.LocalDate;
public class UsingLocalDate
{
   public static void main(String[] args)
   {
      System.out.println(LocalDate.now());
   }
}

  Date currentDate = new Date();
  SimpleDateFormat dateFormat= new SimpleDateFormat("dd/MMM/yyyy");
  String dateOnly = dateFormat.format(currentDate);
  dateTextView.setText(dateOnly);