Java Short valueOf() Method

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

1. Introduction
2. valueOf() Method Syntax
3. Overloaded Versions
   • valueOf(short s)
   • valueOf(String s)
   • valueOf(String s, int radix)
4. Examples
   • Converting a short to Short
   • Converting a String to Short
   • Converting a String with a Radix to Short
5. Real-World Use Case
6. 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:

1. public static Short valueOf(short s)
2. public static Short valueOf(String s) throws NumberFormatException
3. 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.