The Short.valueOf()
method in Java is used to convert a short
primitive or a String
to a Short
object. This method has multiple versions to handle different use cases, including converting a string representation of a number in a specified radix (base) to a Short
object.
Table of Contents
- Introduction
valueOf()
Method Syntax- Overloaded Versions
valueOf(short s)
valueOf(String s)
valueOf(String s, int radix)
- Examples
- Converting a
short
toShort
- Converting a
String
toShort
- Converting a
String
with a Radix toShort
- Converting a
- Real-World Use Case
- Conclusion
Introduction
The Short.valueOf()
method is a static method in the Short
class in Java. It converts primitive short
values and String
representations of numbers into Short
objects. This method is useful when you need to work with Short
objects instead of primitive short
values, such as when working with collections or APIs that require objects.
valueOf()() Method Syntax
There are three primary overloaded versions of the valueOf()
method in the Short
class:
public static Short valueOf(short s)
public static Short valueOf(String s) throws NumberFormatException
public static Short valueOf(String s, int radix) throws NumberFormatException
Overloaded Versions
1. valueOf(short s)
This method converts the primitive short
value s
to a Short
object.
public static Short valueOf(short s)
- s: The short value to be converted to a
Short
object.
The method returns:
- A
Short
object representing the specified short value.
2. valueOf(String s)
This method converts the string s
to a Short
object.
public static Short valueOf(String s) throws NumberFormatException
- s: The string to be converted to a
Short
object.
The method returns:
- A
Short
object representing the value of the specified string.
Throws:
NumberFormatException
if the string does not contain a parsable short.
3. valueOf(String s, int radix)
This method converts the string s
to a Short
object using the specified radix.
public static Short valueOf(String s, int radix) throws NumberFormatException
- s: The string to be converted to a
Short
object. - radix: The radix to be used in interpreting the string.
The method returns:
- A
Short
object representing the value of the specified string in the specified radix.
Throws:
NumberFormatException
if the string does not contain a parsable short.
Examples
Converting a short
to Short
The valueOf(short s)
method converts a primitive short
to a Short
object.
Example
public class ValueOfShortExample {
public static void main(String[] args) {
short number = 123;
Short shortObject = Short.valueOf(number);
System.out.println("Short object: " + shortObject);
}
}
Output:
Short object: 123
In this example, the primitive short 123
is converted to a Short
object.
Converting a String
to Short
The valueOf(String s)
method converts a string to a Short
object.
Example
public class ValueOfStringExample {
public static void main(String[] args) {
String numberString = "456";
Short shortObject = Short.valueOf(numberString);
System.out.println("Short object: " + shortObject);
}
}
Output:
Short object: 456
In this example, the string "456"
is converted to a Short
object.
Converting a String
with a Radix to Short
The valueOf(String s, int radix)
method converts a string in a specified radix to a Short
object.
Example
public class ValueOfStringWithRadixExample {
public static void main(String[] args) {
String binaryString = "1111";
Short shortObject = Short.valueOf(binaryString, 2);
System.out.println("Short object (binary): " + shortObject);
String hexString = "7F";
shortObject = Short.valueOf(hexString, 16);
System.out.println("Short object (hexadecimal): " + shortObject);
}
}
Output:
Short object (binary): 15
Short object (hexadecimal): 127
In this example, the binary string "1111"
is converted to the short value 15
, and the hexadecimal string "7F"
is converted to the short value 127
.
Real-World Use Case
Parsing Configuration Values
In a real-world application, you might use the Short.valueOf()
method to parse configuration values from a properties file or environment variables.
Example
import java.util.Properties;
public class ConfigurationExample {
public static void main(String[] args) {
Properties properties = new Properties();
properties.setProperty("maxConnections", "100");
properties.setProperty("timeout", "30");
Short maxConnections = Short.valueOf(properties.getProperty("maxConnections"));
Short timeout = Short.valueOf(properties.getProperty("timeout"));
System.out.println("Max Connections: " + maxConnections);
System.out.println("Timeout: " + timeout);
}
}
Output:
Max Connections: 100
Timeout: 30
In this example, the configuration values are parsed from a properties file and converted to Short
objects using the Short.valueOf()
method.
Conclusion
The Short.valueOf()
method in Java is a versatile tool for converting short
values and String
representations of numbers into Short
objects. By understanding how to use the different overloaded versions of this method, you can efficiently handle tasks that involve creating and working with Short
objects in your Java applications. Whether you are dealing with base 10, different numeral systems, or parsing configuration values, the valueOf()
method provides a reliable solution for these tasks.