Programming Articles - Page 2929 of 3363

Use the ‘Y’ date conversion character to display four-digit year.System.out.printf("Four-digit Year = %TY",d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Four-digit Year = %TY",d);    } }OutputCurrent date and time = 26/11/2018 11:56:26 AM Four-digit Year = 2018

Use the ‘C’ date conversion character to display two digits of year −System.out.printf("Two-digit Year (Century Name) = %tC/%TC", d, d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo {    public static void main(String[] args) throws Exception {       Date d = new Date();       DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a");       String format = dateFormat.format(d);       System.out.println("Current date and time = " + format);       System.out.printf("Localized day name = %tA/%TA", d, d); ... Read More

In this article, we will talk about creating iterators for efficient looping in Python functions. An iterator is something that helps you go through all the items one by one, like going through pages of a book one page at a time. In Python, we can use lists, tuples, dictionaries, and sets as iterators. So we will explore Python functions that generate iterators for efficient looping. Creating Iterators with Functions Python provides different ways to create iterators using functions. So let us see some examples of creating iterators for efficient looping in Python functions - Using Generator Functions Using ... Read More

This article will explain how decimal fixed-point and floating-point arithmetic work in Python, which is useful for performing accurate calculations in various applications. Numbers in Python can be stored in two ways: floating-point and decimal fixed-point. Floating-point numbers are fast but can sometimes be incorrect because of how computers store them. On the other hand, Decimal fixed-point numbers are more accurate and useful when working with precise calculations.  By the end of this article, you will understand how both types of numbers work, when to use them, and how to write programs using them. Floating-Point Arithmetic The following example will ... Read More

Use the ‘a’ date conversion character to display short day-in-week.System.out.printf("Localized short day name = %ta/%Ta", d, d);Above, d is a date object −Date d = new Date();The following is an example −Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo { public static void main(String[] args) throws Exception { Date d = new Date(); DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a"); String format = dateFormat.format(d); System.out.println("Current date and time = " + ... Read More

The following is an example.Example Live Demoimport java.util.Date; import java.text.DateFormat; import java.text.SimpleDateFormat; public class Demo { public static void main(String[] args) throws Exception { Date d = new Date(); DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss a"); String format = dateFormat.format(d); System.out.println("Current date and time = " + format); System.out.printf("Localized day name = %tA/%TA", d, d); } }OutputCurrent date and time = 26/11/2018 11:44:44 AM Localized day name = Monday/MONDAY

Set width in output as shown below. Here, %10 sets a 10 character fieldSystem.out.printf("d1 = %10.2f d2 = %8g", d1, d2);Above, the value after the decimal is for decimal places i.e. 5.3 is for 3 decimal places −System.out.printf("d1 = %5.3f d2 = %2.5f", d1, d2);The following is an example −Example Live Demopublic class Demo { public static void main(String[] args) throws Exception { double d1 = 399.8877; double d2 = 298.87690; System.out.printf("d1 = %10.2f d2 = %8g", d1, d2); System.out.printf("d1 = %5.3f d2 = %2.5f", d1, d2); } }Outputd1 = 399.89 d2 = 298.877 d1 = 399.888 d2 = 298.87690

First, we have taken a double variable and displayed it twice.double d = 399.8877; System.out.printf("d1 = %2$f d2 = %1$g", d, d);After that, we have formatted numerical int data −int val1 = 90, val2 = 35, val3 = 88, val4 = 600; System.out.printf("val1 = %d, val2 = %x, val3 = %o, val4 = %d", val1, val2, val3, val4); System.out.printf("val2 = %4$d, val2 = %3$d, val3 = %2$o, val4 = %1$d", val1, val2, val3, val4);Above, we have displayed %o for octal, %x for hexadecimal, %d for integer, etc.The following is the complete example −Example Live Demopublic class Demo {    public static ... Read More

To format year in yyyy format is like displaying the entire year. For example, 2018.Use the yyyy format like this −SimpleDateFormat("yyyy");Let us see an example −// year in yyyy format SimpleDateFormat simpleformat = new SimpleDateFormat("yyyy"); String strYear = simpleformat.format(new Date()); System.out.println("Current Year = "+strYear);Above, we have used the SimpleDateFormat class, therefore the following package is imported −import java.text.SimpleDateFormat;The following is an example −Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo { public static void main(String[] args) throws Exception { // displaying current date and time ... Read More

To format year in yy format is like displaying year as 01, 02, 03, 04, etc. For example, 18 for 2018.Use the yy format like this.SimpleDateFormat("yy");Let us see an example −// year in yy format SimpleDateFormat simpleformat = new SimpleDateFormat("yy"); String strYear = simpleformat.format(new Date()); System.out.println("Current Year = "+strYear);Above, we have used the SimpleDateFormat class, therefore the following package is imported −import java.text.SimpleDateFormat;The following is an example −Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo { public static void main(String[] args) throws Exception { // displaying current ... Read More