Date and Time

package my_proj;
import java.time.LocalDate; 

public class my_first {
public static void main(String[] args) {

 LocalDate my_date = LocalDate.now(); // date object is created
 System.out.println(my_date); // 2020-02-14	

}
}

Different Date and time Classes we will use

Displaying present time

package my_proj;
import java.time.LocalTime; 

public class my_first {
public static void main(String[] args) {

 LocalTime my_time = LocalTime.now(); // time object is created
 System.out.println(my_time); // 08:59:47.991582400	

}
}

Both date and time

package my_proj;
import java.time.LocalDateTime; 

public class my_first {
public static void main(String[] args) {
	
LocalDateTime my_date_time = LocalDateTime.now(); // object 
System.out.println(my_date_time); // 2020-02-15T09:11:33.331329600
}
}

Using DateTimeFormatter

package my_proj;
import java.time.LocalDateTime; 
import java.time.format.DateTimeFormatter;
public class my_first {
public static void main(String[] args) {

 LocalDateTime my_date_time = LocalDateTime.now(); 
 System.out.println(my_date_time);//2020-02-29T12:01:45.949632100	

DateTimeFormatter my_format = DateTimeFormatter.ofPattern("dd-MM-yyyy HH:mm:ss");

String my_out_date = my_date_time.format(my_format);
System.out.println("With Formatting: " + my_out_date);//With Formatting: 29-02-2020 11:13:23
//With Formatting: 29-02-2020 12:01:45 
}
}

2020-02-29T12:01:45.949632100
With Formatting: 29-02-2020 12:01:45

Using Calendar

package my_proj;
import java.util.Calendar; 
public class my_first {
public static void main(String[] args) {
    
Calendar my_cal = Calendar.getInstance();// created calendar 

System.out.println("Today's date is :" + my_cal.getTime());

// create date object using year,month and day
my_cal.set(2020, 0, 25);

// print the result
System.out.println("New Date & time is :" + my_cal.getTime());

}
}

Today's date is :Sat Feb 29 15:00:21 IST 2020
New Date & time is :Sat Jan 25 15:00:21 IST 2020