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Articles by karthikeya Boyini
Page 39 of 143
Format Calendar with String.format() in Java
Firstly, consider an object with date value.Object arrObj[] = { "Date", Calendar.getInstance() };After that, use the String.format() method to format Calendar and display the date.The following is an example.Exampleimport java.util.Calendar; public class Demo { public static void main(String []args){ Object arrObj[] = { "Date", Calendar.getInstance() }; System.out.println("Formatting Date..."); System.out.println(String.format("%1$s = %2$tY %2$tm %2$te", arrObj)); } }OutputFormatting Date... Date = 2018 11 17
Read MoreMake the first letter caps and the rest lowercase in Java
The following is an example −Examplepublic class Demo { public static void main(String[] args) { String str = "laptop"; System.out.println("Original String = " +str); // letter one String strOne = str.substring(0,1).toUpperCase(); // remaining letters String strTwo = str.substring(1).toLowerCase(); System.out.println("Resultant String = "+strOne + strTwo); } }OutputOriginal String = laptop Resultant String = Laptop
Read MoreJava Program to get full day name
To display the full day name, use the SimpleDateFormat(“EEEE”) as shown below −// displaying full-day name f = new SimpleDateFormat("EEEE"); String str = f.format(new Date()); System.out.println("Full Day Name = "+str);Since, we have used the Format and SimpleDateFormat class above, therefore import the following packages. With that, we have also used the Date.import java.text.Format; import java.text.SimpleDateFormat; import java.util.Date;Exampleimport 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 Calendar cal = Calendar.getInstance(); SimpleDateFormat simpleformat = new ...
Read MoreC# Exponential ("E") Format Specifier
The ("E") format specifier converts a number to a string of the following form −"-d.ddd…E+ddd"Or"-d.ddd…e+ddd"Above, "d" is a digit (0-9).Prefix the exponent with an "E" or an "e".Exampleusing System; using System.Globalization; class Demo { static void Main() { double d = 3452.7678; Console.WriteLine(d.ToString("E", CultureInfo.InvariantCulture)); Console.WriteLine(d.ToString("E10", CultureInfo.InvariantCulture)); Console.WriteLine(d.ToString("e", CultureInfo.InvariantCulture)); Console.WriteLine(d.ToString("e10", CultureInfo.InvariantCulture)); } }Output3.452768E+003 3.4527678000E+003 3.452768e+003 3.4527678000e+003
Read MoreJava Program to display date and time information in lowercase
Firstly, create a Formatter and a Calendar object.Formatter f = new Formatter(); Calendar c = Calendar.getInstance();To display complete date and time information use the ‘c’ conversion character. However, to display it in lowercase, use ‘tc’ −f = new Formatter(); System.out.println(f.format("Date and Time (lowercase): %tc", cal));The following is an example −Exampleimport java.util.Calendar; import java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); Calendar cal = Calendar.getInstance(); System.out.println("Current date and time: "+cal.getTime()); ...
Read MoreC# Percent ("P") Format Specifier
The percent ("P") format specifier is used to multiply a number by 100.It converts the number into a string representing a % (percentage).We have the following double type −double val = .975746;If we will set (“P”) format specifier, then the above would result as −97.57 %In the same way, using (“P1”), would only include a single vale after decimal-point.97.6%Exampleusing System; using System.Globalization; class Demo { static void Main() { double val = .975746; Console.WriteLine(val.ToString("P", CultureInfo.InvariantCulture)); Console.WriteLine(val.ToString("P1", CultureInfo.InvariantCulture)); Console.WriteLine(val.ToString("P4", CultureInfo.InvariantCulture)); } }Output97.57 % 97.6 % 97.5746 %
Read MoreParse decimal string to create BigInteger in Java
To parse the decimal string to create BigInteger, just set the decimal string in the BigInteger.Here is our BigInteger.BigInteger one; String decStr = "687879"; one = new BigInteger(decStr);Let us see another example −Exampleimport java.math.*; public class Demo { public static void main(String[] args) { BigInteger one, two; String decStr = "4373427"; one = new BigInteger("250"); two = new BigInteger(decStr); System.out.println("Result (BigInteger) : " +one); System.out.println("Result (Parsing Decimal String) : " +two); } }OutputResult (BigInteger) : 250 Result (Parsing Decimal String) : 4373427
Read MoreC# Program to get the difference between two dates in seconds
Set two dates.DateTime date1 = new DateTime(2018, 7, 15, 08, 15, 20); DateTime date2 = new DateTime(2018, 7, 15, 11, 14, 25);Now calculate the difference between two dates.TimeSpan ts = date2 - date1;Move further and calculate the difference in seconds.ts.TotalSecondsLet us see the complete code.Exampleusing System; using System.Linq; public class Demo { public static void Main() { DateTime date1 = new DateTime(2018, 7, 15, 08, 15, 20); DateTime date2 = new DateTime(2018, 7, 15, 11, 14, 25); TimeSpan ts = date2 - date1; Console.WriteLine("No. of Seconds (Difference) = {0}", ts.TotalSeconds); } }OutputNo. of Seconds (Difference) = 10745
Read MoreJava Program to display previous day from GregorianCalender
For GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Create an object.GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance();Now, use the following field and add() method with a negative one (-1) to display the previous day.cal.add((GregorianCalendar.DATE), -1)Exampleimport java.util.Calendar; import java.util.GregorianCalendar; public class Demo { public static void main(String[] a) { GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance(); System.out.println("Current date: " + cal.getTime()); // past date cal.add((GregorianCalendar.DATE), -1); System.out.println("Modified date (Previous Day): " + cal.getTime()); } }OutputCurrent date: Mon Nov 19 18:12:53 UTC 2018 Modified date (Previous Day): Sun Nov 18 18:12:53 UTC 2018
Read MoreParse and format to arbitrary radix <= Character.MAX_RADIX in Java
Let us set a radix here as.// radix int r = 32;Include the radix here as a BigInteger constructor.BigInteger one = new BigInteger("vv", r);Now get its string representation −String strResult = one.toString(radix);The following is an example −Exampleimport java.math.*; public class Demo { public static void main(String[] args) { // radix int r = 32; BigInteger one = new BigInteger("vv", r); String strResult = one.toString(r); System.out.println(strResult); } }Outputvv
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