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Java Program to create custom DateTime formatter
To create custom DateTime formatter, use DateTimeFormatter. Let us first see for Time −
DateTimeFormatter dtFormat = new DateTimeFormatterBuilder()
.appendValue(ChronoField.HOUR_OF_DAY)
.appendLiteral(":")
.appendValue(ChronoField.MINUTE_OF_HOUR)
.appendLiteral(":")
.appendValue(ChronoField.SECOND_OF_MINUTE)
.toFormatter();For Date −
dtFormat = new DateTimeFormatterBuilder()
.appendValue(ChronoField.YEAR)
.appendLiteral("/")
.appendValue(ChronoField.MONTH_OF_YEAR)
.appendLiteral("/")
.appendValue(ChronoField.DAY_OF_MONTH)
.toFormatter();Example
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.temporal.ChronoField;
public class Demo {
public static void main(String[] args) {
DateTimeFormatter dtFormat = new DateTimeFormatterBuilder()
.appendValue(ChronoField.HOUR_OF_DAY)
.appendLiteral(":")
.appendValue(ChronoField.MINUTE_OF_HOUR)
.appendLiteral(":")
.appendValue(ChronoField.SECOND_OF_MINUTE)
.toFormatter();
System.out.println("Time = "+dtFormat.format(LocalDateTime.now()));
dtFormat = new DateTimeFormatterBuilder()
.appendValue(ChronoField.YEAR)
.appendLiteral("/")
.appendValue(ChronoField.MONTH_OF_YEAR)
.appendLiteral("/")
.appendValue(ChronoField.DAY_OF_MONTH)
.toFormatter();
System.out.println("Date = "+dtFormat.format(LocalDateTime.now()));
}
}Output
Time = 12:47:31 Date = 2019/4/19
Updated on: 30-Jul-2019
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