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Programming Articles
Page 2515 of 2547
Java Program to get Temporal Queries precision
To get Temporal Queries precision, use the TemporalQuery interface with the precision() method of the TemporalQueries −TemporalQueryprecision = TemporalQueries.precision(); Get the precision for LocalDate: LocalDate.now().query(precision) Get the precision for LocalTime: LocalTime.now().query(precision) Get the precision for YearMonth: YearMonth.now().query(precision) Get the precision for Year: Year.now().query(precision)Exampleimport java.time.LocalDate; import java.time.LocalDateTime; import java.time.LocalTime; import java.time.Year; import java.time.YearMonth; import java.time.temporal.TemporalQueries; import java.time.temporal.TemporalQuery; import java.time.temporal.TemporalUnit; public class Demo { public static void main(String[] args) { TemporalQueryprecision = TemporalQueries.precision(); System.out.println("TemporalQueries precision..."); System.out.println(LocalDate.now().query(precision)); System.out.println(LocalTime.now().query(precision)); System.out.println(LocalDateTime.now().query(precision)); System.out.println(YearMonth.now().query(precision)); System.out.println(Year.now().query(precision)); ...
Read MoreHow do I discover the Quarter of a given Date in Java?
Let us first get the current date −LocalDate currentDate = LocalDate.now();Now, use the Calendar class and set the locale −Calendar cal = Calendar.getInstance(Locale.US);Now, get the month −int month = cal.get(Calendar.MONTH);Find the Quarter −int quarter = (month / 3) + 1;Exampleimport java.time.LocalDate; import java.util.Calendar; import java.util.Locale; public class Demo { public static void main(String[] args) { LocalDate currentDate = LocalDate.now(); System.out.println("Current Date = "+currentDate); Calendar cal = Calendar.getInstance(Locale.US); int month = cal.get(Calendar.MONTH); int quarter = (month / 3) + 1; System.out.println("Quarter = "+quarter); } }OutputCurrent Date = 2019-04-12 Quarter = 2
Read MoreHow to get number of quarters between two dates in Java
Let’s say we have the following two dates −LocalDate.of(2019, 3, 20); LocalDate.of(2019, 10, 25);To get the number of quarters between the above two dates, use the QUARTER_YEARS −IsoFields.QUARTER_YEARS.between(LocalDate.of(2019, 3, 20),LocalDate.of(2019, 10, 25));Exampleimport java.time.LocalDate; import java.time.temporal.IsoFields; public class Demo { public static void main(String[] args) { long quarters = IsoFields.QUARTER_YEARS.between(LocalDate.of(2019, 3, 20), LocalDate.of(2019, 10, 25)); System.out.println("Quarters between the two dates = " + quarters); } }OutputQuarters between the two dates = 2
Read MoreThe addAtX() method of the Octet Tuple in Java
The addAtX() method is used in Octet Tuple to add value. Here, X is the index wherein you need to add the value i.e. to add value at index 0, use the addAt0() and value as a parameter. Let us first see what we need to work with JavaTuples. To work with Octet class in JavaTuples, you need to import the following packageimport org.javatuples.Octet;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. ...
Read MoreC++ Program to Check if an UnDirected Graph is a Tree or Not Using DFS
A graph is a tree if it does not contain any cycle. This is a C++ program to check whether an undirected graph is tree or not.AlgorithmBegin function cyclicUtil() : A) Mark the current node as visited. B) Recur for all the vertices adjacent to this vertex. C) If an adjacent is not visited, then recur for that adjacent. D) If an adjacent is visited and not parent of current vertex, then there is a cycle. End Begin function cyclic(): A) Mark all the vertices as not visited and not part of recursion stack. ...
Read MoreJava Program to convert java.util.Date to any local date in certain timezone
First, set the Date and ZoneId −Date date = new Date(); ZoneId zone = ZoneId.systemDefault();Now convert the java.util.date to localdate −date.toInstant().atZone(zone).toLocalDate() date.toInstant().atZone(zone).toLocalTime() date.toInstant().atZone(zone).getHour() date.toInstant().atZone(zone).getMinute() date.toInstant().atZone(zone).getSecond()Exampleimport java.time.ZoneId; import java.util.Date; public class Demo { public static void main(String[] args) { Date date = new Date(); ZoneId zone = ZoneId.systemDefault(); System.out.println("LocalDate = "+date.toInstant().atZone(zone).toLocalDate()); System.out.println("LocalTime= "+date.toInstant().atZone(zone).toLocalTime()); System.out.println("Hour = "+date.toInstant().atZone(zone).getHour()); System.out.println("Minute = "+date.toInstant().atZone(zone).getMinute()); System.out.println("Seconds = "+date.toInstant().atZone(zone).getSecond()); } }OutputLocalDate = 2019-04-18 LocalTime= 23:25:09.708 Hour = 23 Minute = 25 Seconds = 9
Read MoreC++ Program to Implement Modular Exponentiation Algorithm
This is a C++ program to implement Modular Exponentiation Algorithm.AlgorithmBegin function modular(): // Arguments: base, exp, mod. // Body of the function: initialize res = 1 while (exp > 0) if (exp mod 2 == 1) res= (res * base) % mod exp = exp left shift 1 base = (base * base) % mod return res. EndExample#include using namespace std; long long modular(long long base, long long exp, int mod) { long long res = 1; while (exp > 0) { if (exp % 2 == 1) res= (res * base) % mod; exp = exp >> 1; base = (base * base) % mod; } return res; } int main() { long long b, e; int mod; coutb; coute; coutmod; cout
Read MoreCreate Septet Tuple in Java using with() method
The with() method is used to create Septet Tuple in Java.Let us first see what we need to work with JavaTuples. To work with Septet class in JavaTuples, you need to import the following package −import org.javatuples.Septet;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Septet Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Septet; public class Demo { public static void main(String[] args) { Septet < ...
Read MoreCreate Pair Tuple using with() method in Java
You can also create a Pair Tule in Java using the with() method.Let us first see what we need to work with JavaTuples. To work with Pair class in JavaTuples, you need to import the following package −import org.javatuples.Pair;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Pair Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example to create Pair Tuple using with() method −import org.javatuples.Pair; public class Demo { public static ...
Read MoreHow to convert a String into a Date object using JDBC API?
The valueOf() method of the Date object accepts a String value representing a Date in JDBC escape format i.e. yyyy-mm-dd and converts the given String value into java.sql.Date object.Date date = Date.valueOf(“date_string”);Assume we have created a table named employee_data with the description as shown below:+----------+--------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+--------------+------+-----+---------+-------+ | id | int(11) | YES | | NULL | | | Name | varchar(255) | YES | ...
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