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Have you used Singleton design pattern in your Java project?

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Pragya Keshap answered on March 4, 2022 Popularity 9/10 Helpfulness 2/10

answer Have you used Singleton design pattern in your Java project?

related Singleton pattern with java example

related java singleton design pattern

Have you used Singleton design pattern in your Java project?

Comment

Yes. Singleton is one of the most popular design patterns in

enterprise level Java applications. Almost in every project we see

some implementation of Singleton.

With Singleton pattern we can be sure that there is only one instance

of a class at any time in the application.

This helps in storing properties that have to be used in the

application in a unique location

public class SingletonSerializedTest {

    public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
        SerializedSingleton instanceOne = SerializedSingleton.getInstance();
        ObjectOutput out = new ObjectOutputStream(new FileOutputStream(
                "filename.ser"));
        out.writeObject(instanceOne);
        out.close();

        // deserialize from file to object
        ObjectInput in = new ObjectInputStream(new FileInputStream(
                "filename.ser"));
        SerializedSingleton instanceTwo = (SerializedSingleton) in.readObject();
        in.close();

        System.out.println("instanceOne hashCode="+instanceOne.hashCode());
        System.out.println("instanceTwo hashCode="+instanceTwo.hashCode());

    }

}

https://www.digitalocean.com/community/tutorials/java-singleton-design-pattern-best-practices-examples

Popularity 9/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java singleton

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Contributed on Feb 10 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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Singleton pattern with java example

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public class Singleton {
    // Private static instance variable to hold the single instance
    private static Singleton instance;

    // Private constructor to prevent instantiation from other classes
    private Singleton() {
        // Initialization code, if needed
    }

    // Public static method to get the single instance
    public static Singleton getInstance() {
        if (instance == null) {
            instance = new Singleton();
        }
        return instance;
    }

    // Other methods of the Singleton class
    public void showMessage() {
        System.out.println("Hello, I am a Singleton!");
    }
}

Popularity 9/10 Helpfulness 2/10 Language java

Source: chat.openai.com

Tags: java singleton sing

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Contributed on Aug 11 2023

Hilarious Heron

0 Answers Avg Quality 2/10

java singleton design pattern

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synchoronized

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java singleton

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Contributed on Mar 04 2022

INTAN RAHAYU SUGIANTO

0 Answers Avg Quality 2/10

Have you used Singleton design pattern in your Java project?

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