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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.
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