Java Short longValue() Method

The Short.longValue() method in Java is used to convert a Short object to a long primitive.

Table of Contents

1. Introduction
2. longValue() Method Syntax
3. Examples
   • Converting a Short to long
   • Performing Arithmetic Operations
   • Handling null Values
4. Real-World Use Case
5. Conclusion

Introduction

The Short.longValue() method is an instance method in the Short class in Java. It converts a Short object to a long primitive. This method is useful when you need to perform operations that require long precision on Short objects.

longValue()() Method Syntax

The syntax for the Short.longValue() method is as follows:

public long longValue()

The method returns:

• The long value represented by this Short object.

Examples

Converting a Short to long

The longValue() method can be used to convert a Short object to a long primitive.

Example

public class ShortToLongExample {
    public static void main(String[] args) {
        Short shortObject = 123;
        long longValue = shortObject.longValue();

        System.out.println("Long value of 123: " + longValue);
    }
}

Output:

Long value of 123: 123

In this example, the Short object 123 is converted to the long primitive 123.

Performing Arithmetic Operations

You can use the longValue() method to extract the long primitive from a Short object and perform arithmetic operations.

Example

public class ArithmeticOperationsExample {
    public static void main(String[] args) {
        Short shortObject1 = 50;
        Short shortObject2 = 30;

        long sum = shortObject1.longValue() + shortObject2.longValue();
        long difference = shortObject1.longValue() - shortObject2.longValue();
        long product = shortObject1.longValue() * shortObject2.longValue();
        long quotient = shortObject1.longValue() / shortObject2.longValue();

        System.out.println("Sum: " + sum);
        System.out.println("Difference: " + difference);
        System.out.println("Product: " + product);
        System.out.println("Quotient: " + quotient);
    }
}

Output:

Sum: 80
Difference: 20
Product: 1500
Quotient: 1

In this example, the Short objects 50 and 30 are converted to long primitives, and arithmetic operations are performed on them.

Handling null Values

When dealing with Short objects, it's important to handle null values to avoid NullPointerException.

Example

public class NullHandlingExample {
    public static void main(String[] args) {
        Short shortObject = null;

        if (shortObject != null) {
            long longValue = shortObject.longValue();
            System.out.println("Long value: " + longValue);
        } else {
            System.out.println("The Short object is null.");
        }
    }
}

Output:

The Short object is null.

In this example, the code checks if the Short object is null before attempting to convert it to a long primitive.

Real-World Use Case

Converting User Input

In a real-world application, you might need to convert user input, which is often in the form of Short objects, to long primitives for calculations or storage.

Example

import java.util.Scanner;

public class UserInputExample {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter a short number: ");

        Short shortObject = scanner.nextShort();
        long longValue = shortObject.longValue();

        long result = longValue * 2;
        System.out.println("The result of doubling the input is: " + result);

        scanner.close();
    }
}

Output (example input 123):

Enter a short number:
The result of doubling the input is: 246

In this example, the user input is read as a Short object and then converted to a long primitive for a calculation.

Conclusion

The Short.longValue() method in Java is a straightforward way to convert Short objects to long primitives. By understanding how to use this method, you can efficiently handle tasks that involve converting Short objects to long primitives in your Java applications. Whether you are performing arithmetic operations, handling user input, or avoiding null values, the longValue() method provides a reliable solution for these tasks.