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);        }    }} |
Output:
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);        }    }} |
Output:
LocalDate is : null
