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Articles by karthikeya Boyini
Page 27 of 143
C# Linq Intersect Method
Find common elements between two arrays using the Intersect() method.The following are our arrays −int[] val1 = { 15, 20, 40, 60, 75, 90 }; int[] val2 = { 17, 25, 35, 55, 75, 90 };To perform intersection.val1.AsQueryable().Intersect(val2);Let us see the entire example.Exampleusing System; using System.Collections.Generic; using System.Linq; class Demo { static void Main() { int[] val1 = { 15, 20, 40, 60, 75, 90 }; int[] val2 = { 17, 25, 35, 55, 75, 90 }; IEnumerable res = val1.AsQueryable().Intersect(val2); Console.WriteLine("Intersection of both the lists..."); foreach (int a in res) Console.WriteLine(a); } }OutputIntersection of both the lists... 75 90
Read Moreisgreater() in C/C++
The function isgreater() is used to check that the first argument is greater than the second one or not. It is declared in “math.h” header file in C language. It returns true, if successful, otherwise false.Here is the syntax of isgreater().bool isgreater(value1 , value2);Here, value1 − This is the first argument which will be checked with value2.value2 − This is the second argument which is used to check value1 that is greater or not.Here is an example of isgreater().Example#include #include using namespace std; int main() { int val1 = 28; int val2 = 8; bool result; ...
Read MoreSet a GregorianCalendar object to a particular date in Java
To work with the GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Firstly, create a GregorianCalendar object.GregorianCalendar calendar = new GregorianCalendar();Now, set the above-created object to a date. Here 0 is for 1st month.calendar.set(2018, 0, 25);The following is an example.Exampleimport java.util.GregorianCalendar; import java.util.Calendar; import java.util.Date; public class Demo { public static void main(String[] args) { GregorianCalendar calendar = new GregorianCalendar(); // 0 is for 1st month calendar.set(2018, 0, 25); System.out.println("" + calendar.getTime()); } }OutputThu Jan 25 16:51:24 UTC 2018
Read MoreDisplay TimeZone in zzzz format in Java
Use the zzzz format like this for TimeZone.SimpleDateFormat("zzzz");Let us see an example −// displaying timezone in zzzz format simpleformat = new SimpleDateFormat("zzzz"); String strTimeZone = simpleformat.format(new Date()); System.out.println("TimeZone in zzzz format = "+strTimeZone);Above, we have used the SimpleDateFormat class, therefore the following package is imported −import java.text.SimpleDateFormat;The following is an example −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(); ...
Read MoreC# Queryable Max Method
Get the maximum value from a sequence using the Max() method.Let’s say the following is our list.List list = new List { 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000 };Use the Max() method to get the largest element.list.AsQueryable().Max();Exampleusing System; using System.Collections.Generic; using System.Linq; class Demo { static void Main() { List list = new List { 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000 }; foreach(long ele in list) Console.WriteLine(ele); // getting largest element long max_num = list.AsQueryable().Max(); Console.WriteLine("Largest number = {0}", max_num); } }Output200 400 600 800 1000 1200 1400 1600 1800 2000 Largest number = 2000
Read MoreModify Date and Time from GregorianCalendar in Java
For GregorianCalendar class, import the following package.import java.util.GregorianCalendar;Firstly, let us display the current date and time.GregorianCalendar cal = (GregorianCalendar) GregorianCalendar.getInstance(); System.out.println("Current date: " + cal.getTime());Now, modify the date. Here we are adding two days to the month using the add() method.cal.add((GregorianCalendar.MONTH), 2);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()); cal.add((GregorianCalendar.MONTH), 2); System.out.println("Modified date: " + cal.getTime()); } }OutputCurrent date: Mon Nov 19 17:52:55 UTC 2018 Modified date: Sat Jan 19 ...
Read MoreJava program to check if binary representation is palindrome
A palindrome is a sequence that is same both forwards and backwards. The binary representation of a number is checked for being a palindrome but no leading 0’s are considered. An example of this is given as follows − Number = 5 Binary representation = 101 The binary representation of 5 is a palindrome as it is the same both forwards and backwards. A program that demonstrates this is given as follows. Example public class Example { public static void main(String argc[]) { long num = 5, n1; ...
Read MoreHow to display Java Runtime Environment (JRE) version
Use the System.getProperty() method in Java to get the Java Runtime Environment.It’s syntax is −String getProperty(String key)Above, the key is the name of the system property. Since, we want the Java Runtime Environment name, therefore we will add the key as −java.versionThe following is an example −Examplepublic class Demo { public static void main(String[] args) { System.out.print("Java Specification Version: "); System.out.println(System.getProperty("java.specification.version")); System.out.print("java Runtime Environment (JRE) version: "); System.out.println(System.getProperty("java.version")); } }OutputJava Specification Version: 1.8 java Runtime Environment (JRE) version: 1.8.0_141
Read MoreC# Orderby Descending
Use Orderby descending in C# to sort elements in descending order.The following is our list −IList emp = new List() { new Employee() { EmployeeRank = 3, EmpName = "Tom", EmpMarks = 90 } , new Employee() { EmployeeRank = 4, EmpName = "Katie", EmpMarks = 95 } };Now to sort the list according to Student name, use Orderby. The default is ascending, therefore for descending order, use descending.var res = from str in emp orderby str.EmpName descending select str;Here is the complete code.Exampleusing System; using System.Linq; using System.Collections.Generic; public class Demo { public static void Main() { ...
Read MoreParse string date value input in Java
UseSimpleDateFormat('dd-MMM-yy') for string date.Format dateFormatter = new SimpleDateFormat("dd-MMM-yy");For above class, do not forget to import the following package, else an error would be visible.import java.text.SimpleDateFormat;Now, parse the date.Date dt = (Date) dateFormatter.parseObject("20-Nov-18");Exampleimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static void main(String[] argv) throws Exception { Format dateFormatter = new SimpleDateFormat("dd-MMM-yy"); // parse Date dt = (Date) dateFormatter.parseObject("20-Nov-18"); System.out.println("Date = "+dt); } }OutputDate = Tue Nov 20 00:00:00 UTC 2018
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