In this source code example, we will you how to format a LocalDateTime into dd/MM/yyyy HH:mm:ss format in Java.

Java format LocalDateTime to dd/MM/yyyy HH:mm:ss

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class Main {

    public static void main(String[] args) {

        // yyyy-MM-dd HH:mm:ss
        LocalDateTime localDateTime = LocalDateTime.now();
        DateTimeFormatter formatterLocalDateTime = 
                DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss");
        String ldt1 = formatterLocalDateTime.format(localDateTime);

        // or shortly
        String ldt2 = LocalDateTime.now()
                .format(DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss"));
        
        System.out.println(ldt1);
        System.out.println(ldt2);
       
    }

}

Output:

10/11/2021 17:28:37
10/11/2021 17:28:37