LocalTime format() method in Java with Examples

Last Updated : 03 Dec, 2018

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 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 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); 
    } 
} 