Java SQLTime valueOf()

In this guide, you will learn about the SQLTime valueOf() method in Java programming and how to use it with an example.

1. SQLTime valueOf() Method Overview

Definition:

The valueOf() method of the java.sql.Time class in Java returns a Time object representing the given time string in hh:mm:ss format.

Syntax:

public static Time valueOf(String s)

Parameters:

- s (String): a string representing time in the format hh:mm:ss.

Key Points:

- The java.sql.Time class is part of the java.sql package, and it represents a time in the SQL TIME data type.

- The valueOf() method is static and is used to obtain an instance of java.sql.Time from a string representing a time.

- The input string should be in the format hh:mm:ss, and if the string is not in the correct format, a java.lang.IllegalArgumentException is thrown.

- The returned Time object will not have date information, as java.sql.Time only represents the time without the date.

- This method is useful when you need to convert a string time from SQL data to a Time object in Java.

2. SQLTime valueOf() Method Example

import java.sql.Time;

public class SQLTimeExample {
    public static void main(String[] args) {
        // Converting a time string to a SQLTime object using valueOf() method
        String timeString = "14:05:30";
        Time sqlTime = Time.valueOf(timeString);

        // Printing the SQLTime object
        System.out.println("SQLTime: " + sqlTime);

        // Trying to convert an incorrectly formatted time string (throws IllegalArgumentException)
        try {
            String incorrectTimeString = "14:05";
            Time incorrectTime = Time.valueOf(incorrectTimeString);
        } catch (IllegalArgumentException e) {
            System.out.println("Exception: " + e.getMessage());
        }
    }
}

Output:

SQLTime: 14:05:30
Exception: java.lang.IllegalArgumentException

Explanation:

In this example, we used the valueOf() method to convert a correctly formatted time string to a java.sql.Time object and printed it. We also demonstrated what happens when trying to convert an incorrectly formatted time string, which results in a java.lang.IllegalArgumentException.