The resolveDate() method of java.time.chrono.IsoChronology class is used to retrieve the local date according to Iso calendar by parsing chrono field associated with a particular long value in a map with the help of particular resolver style.
Syntax:
public LocalDate resolveDate( Map fieldValues, ResolverStyle resolverStyle)
Parameter: This method takes the following argument as a parameter:
- fieldvalues: this will contain the chrono fields.
- resolverStyle: this will resolve the chrono field and provide the date.
Return Value: This method returns the local date according to Iso calendar by parsing Chrono field associated with a particular long value in a map with the help of particular resolver style.
Below are the examples to illustrate the resolveDate() method:
Example 1:
// Java program to demonstrate // resolveDate() method import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
import java.time.format.*;
public class GFG {
public static void main(String[] argv)
{
try {
// creating and initializing
// LocalDate Object
LocalDate hidate
= LocalDate.now();
// getting IsoChronology
// used in LocalDate
IsoChronology crono
= hidate.getChronology();
// creating and initializing HashMap
HashMap<TemporalField, Long> map
= new HashMap<TemporalField, Long>();
// putting element into HashMap
map.put((TemporalField)
ChronoField.EPOCH_DAY,
30l);
// getting the resolveDate with
// SMART ResolverStyle
// by using resolveDate() method
hidate
= crono.resolveDate(
map,
ResolverStyle.LENIENT);
// display the result
System.out.println( "LocalDate is : "
+ hidate);
}
catch (DateTimeException e) {
System.out.println( "passed parameter can"
+ " not form a date" );
System.out.println( "Exception thrown: "
+ e);
}
}
} |
LocalDate is : 1970-01-31
Example 2:
// Java program to demonstrate // resolveDate() method import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
import java.time.format.*;
public class GFG {
public static void main(String[] argv)
{
try {
// creating and initializing
// LocalDate Object
LocalDate hidate
= LocalDate.now();
// getting IsoChronology
// used in LocalDate
IsoChronology crono
= hidate.getChronology();
// creating and initializing HashMap
HashMap<TemporalField, Long> map
= new HashMap<TemporalField, Long>();
// putting element into HashMap
map.put((TemporalField)
ChronoField.HOUR_OF_AMPM,
2000l);
// getting the resolveDate with
// SMART ResolverStyle
// by using resolveDate() method
hidate
= crono.resolveDate(
map,
ResolverStyle.LENIENT);
// display the result
System.out.println( "LocalDate is : "
+ hidate);
}
catch (DateTimeException e) {
System.out.println(
"passed parameter can"
+ " not form a date" );
System.out.println(
"Exception thrown: "
+ e);
}
}
} |
LocalDate is : null