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LocalTime format() method in Java with Examples

Last Updated : 03 Dec, 2018
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The format() method of a LocalTime class is used to format this time using the specified formatter passed as a parameter. This method formats this time based on passed formatter to a string. Syntax: 
public String format(DateTimeFormatter formatter)
Parameters: This method accepts a single parameter formatter which is the specified formatter. It should not be null. Return value: This method returns the formatted time string. Exception: This method throws a DateTimeException if an error occurs during printing. Below programs illustrate the format() method: Program 1: Java 
// Java program to demonstrate
// LocalTime.format() method

import java.time.*;
import java.time.format.DateTimeFormatter;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalTime Objects
        LocalTime time
            = LocalTime.parse("03:18:23");

        // create formatter Object
        DateTimeFormatter formatter
            = DateTimeFormatter.ISO_TIME;

        // apply format
        String value = time.format(formatter);

        // print result
        System.out.println("value : "
                           + value);
    }
}
Output: 
value : 03:18:23
Program 2: Java 
// Java program to demonstrate
// LocalTime.format() method

import java.time.*;
import java.time.format.DateTimeFormatter;

public class GFG {
    public static void main(String[] args)
    {

        // create a LocalTime Objects
        LocalTime time
            = LocalTime.parse("23:59:59");

        // create formatter Object for ISO_LOCAL_TIME
        DateTimeFormatter formatter
            = DateTimeFormatter.ISO_LOCAL_TIME;

        // apply format
        String value = time.format(formatter);

        // print result
        System.out.println("value : "
                           + value);
    }
}
Output: 
value : 23:59:59
Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalTime.html#format(java.time.format.DateTimeFormatter)

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