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Programming Articles
Page 793 of 2544
C# Console.WindowWidth Property
The WindowWidth property gets or sets the width of the console window.Declare a variable.int width;Now, get the width of the current window.width = Console.WindowWidth;The following is the complete example.Exampleusing System; using System.Numerics; using System.Globalization; class Demo { static void Main() { int width; int height; width = Console.WindowWidth; height = Console.WindowHeight; Console.WriteLine("Current window width = "+width); Console.WriteLine("Current window height = "+height); } }OutputCurrent window width = 0 Current window height = 0
Read MoreDetermining If an Object Is an Array in Java
In order to determine if an object is an Object is an array in Java, we use the isArray() and getClass() methods.The isArray() method checks whether the passed argument is an array. It returns a boolean value, either true or falseSyntax - The isArray() method has the following syntax -Array.isArray(obj)The getClass() method method returns the runtime class of an object. The getClass() method is a part of the java.lang.Object class.Declaration − The java.lang.Object.getClass() method is declared as follows −public final Class getClass()The getClass() method acts as the intermediate method which returns an runtime class of the object, which enables the terminal ...
Read MoreConvert.ChangeType Method in C#
The ChangeType() method returns an object of the specified type and whose value is equivalent to the specified object.Let’s say we have a double type.double val = -3.456Now, use the ChangeType method to change the type to integer.num = (int)Convert.ChangeType(val, TypeCode.Int32);Let us see the complete example.Exampleusing System; public class Demo { public static void Main() { double val = -3.456; int num = (int)Convert.ChangeType(val, TypeCode.Int32); Console.WriteLine("{0} converted to an Int32: {1}", val, num); } }Output-3.456 converted to an Int32: -3
Read MoreJava Program to replace one specific character with another
Use the replace() method to replace a specific character with another. Let’s say the following is our string and here we are replacing a whitespace with a $ character.String str1 = "Orange is the new Black!";Now, use the replace() method to replace a character with $str1.replace(' ', '$');Examplepublic class Demo { public static void main(String[] args) { String str1 = "Orange is the new Black!"; System.out.println("String: "+str1); String str2 = str1.replace(' ', '$'); System.out.println("Updated string: "+str2); } }OutputString: Orange is the new Black! Updated string: Orange$is$the$new$Black!
Read MoreJava Program to format date with System.out.format
System.out.format is used in Java to format output.Firstly, create a Calendar object −Calendar calendar = Calendar.getInstance();Now, use theDate-Time conversion characters to get the date, month and year −System.out.format("%te %tB, %tY%n", calendar, calendar, calendar);The following is the complete example −Exampleimport java.util.Locale; import java.util.Calendar; public class TestFormat { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); System.out.format("%te %tB, %tY%n", calendar, calendar, calendar); } }Output22 November, 2018
Read MoreConvert.ToBoolean Method in C#
The Convert.ToBoolean method is used to convert a specified value to an equivalent Boolean value.The following is our double type.double doubleNum = 329.34;To convert it to Boolean, use the Convert.ToBoolean() method.bool boolNum; boolNum = System.Convert.ToBoolean(doubleNum);Let us see another example.Exampleusing System; public class Demo { public static void Main() { double doubleNum = 3.4; bool boolNum; // Double to bool boolNum = System.Convert.ToBoolean(doubleNum); System.Console.WriteLine("{0} as a Boolean = {1}.", doubleNum, boolNum); } }Output3.4 as a Boolean = True.
Read MoreSet Date patterns with SimpleDateFormat in Java
The following pattern letters are defined (all other characters from 'A' to 'Z' and from 'a' to 'z' are reserved) for Date and Time in JavaReference − Oracle JavaLetterDate or Time ComponentPresentationExamplesGEra designatorTextADYYearYear1996; 96YWeek yearYear2009; 09MMonth in yearMonthJuly; Jul; 07WWeek in yearNumber27WWeek in monthNumber2DDay in yearNumber189DDay in monthNumber10FDay of week in monthNumber2EDay name in weekTextTuesday; TueUDay number of week (1 = Monday, ..., 7 = Sunday)Number1AAm/pm markerTextPMHHour in day (0-23)Number0KHour in day (1-24)Number24KHour in am/pm (0-11)Number0hHour in am/pm (1-12)Number12mMinute in hourNumber30sSecond in minuteNumber55SMillisecondNumber978zTime zoneGeneral time zonePacific Standard Time; PST; GMT-08:00ZTime zoneRFC 822 time zone-800XTime zoneThe above pattern letters are combined ...
Read MoreConvert.ToByte Method in C#
The Convert.ToByte method is used to convert a specified value to an 8-bit unsigned integer.Let’s say we have a char variable.Char charVal = ‘a’;Now, convert it to an 8-bit unsigned integer.byte byteVal = Convert.ToByte(charVal);Let us see another example now.Exampleusing System; public class Demo { public static void Main() { char[] charVal = { 'p', 'q', 'r', 's' }; foreach (char c in charVal) { byte byteVal = Convert.ToByte(c); Console.WriteLine("{0} is converted to = {1}", c, byteVal); } } }Outputp is converted to = 112 q is converted to = 113 r is converted to = 114 s is converted to = 115
Read MoreConvert.ToUInt64 Method in C#
Use the Convert.ToUInt64() method to convert a specified value to a 64-bit unsigned integer.The following is our char.char ch = 'a';Now, let’s convert it to a 64-bit unsigned integer.ulong res; res = Convert.ToUInt64(ch);Here is the complete example.Exampleusing System; public class Demo { public static void Main() { char ch = 'a'; ulong res; res = Convert.ToUInt64(ch); Console.WriteLine("Converted char value '{0}' to {1}", ch, res); } }OutputConverted char value 'a' to 97
Read MoreJava Program to display date with day name in short format
Firstly, set the format with SimpleDateFormat classFormat dateFormat = new SimpleDateFormat("EEE, dd/MM/yyyy");Above, the “EEE” is set to display the name of the day i.e. Monday, Tuesday, Wednesday, etc.Now, to display the date −String res = dateFormat.format(new Date());The following is an example −Exampleimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; public class Demo { public static void main(String[] argv) throws Exception { Format dateFormat = new SimpleDateFormat("EEE, dd/MM/yyyy"); String res = dateFormat.format(new Date()); System.out.println("Date = " + res); } }OutputDate = Thu, 22/11/2018
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