Breaking News: Grepper is joining You.com. Read the official announcement!

java Singleton

Add Answer

Savindi Dadallage answered on February 20, 2020 Popularity 8/10 Helpfulness 3/10

answer java Singleton

related java singleton implementation

related java singleton

related Java Singleton pattern

related Java Singleton Class Syntax

java Singleton

Comment

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

    // Private constructor to prevent instantiation from outside the class
    private Singleton() {
        // Initialization code, if needed
    }

    // Public static method to get the single instance of the class
    public static Singleton getInstance() {
        // Lazy initialization: create the instance if it doesn't exist yet
        if (instance == null) {
            instance = new Singleton();
        }
        return instance;
    }

    // Other methods and variables can be added here as needed
}

Popularity 8/10 Helpfulness 3/10 Language java

Source: chat.openai.com

Tags: java singleton

Link to this answer
Share Copy Link

Contributed on Jan 28 2024

Savindi Dadallage

0 Answers Avg Quality 2/10

Closely Related Answers

java singleton implementation

Comment

public class SingletonClass {
    private static final SingletonClass SINGLE_INSTANCE = new SingletonClass();
    private SingletonClass() {}
  public static SingletonClass getInstance() {
      return SINGLE_INSTANCE;
    }
}

Popularity 10/10 Helpfulness 4/10 Language java

Source: dzone.com

Tags: implementation impl

Link to this answer
Share Copy Link

Contributed on Feb 20 2020

Java Hater

0 Answers Avg Quality 2/10

java singleton

Comment

- A private constructor
- A static field containing its only instance
- A static factory method for obtaining the instance

public final class ClassSingleton 
{

    private static ClassSingleton INSTANCE;
    private String info = "Initial info class";
    
    private ClassSingleton() 
	{        
    }
    
    public static ClassSingleton getInstance() 
	{
        if(INSTANCE == null) 
        {
            INSTANCE = new ClassSingleton();
        }
  
        return INSTANCE;
    }

    // getters and setters
}

                      =============Usage============
                        

To use our ClassSingleton, we simply need to get the instance statically:

ClassSingleton classSingleton1 = ClassSingleton.getInstance();

System.out.println(classSingleton1.getInfo()); //Initial class info

ClassSingleton classSingleton2 = ClassSingleton.getInstance();
classSingleton2.setInfo("New class info");

System.out.println(classSingleton1.getInfo()); //New class info
System.out.println(classSingleton2.getInfo()); //New class info

Popularity 10/10 Helpfulness 4/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Jan 08 2021

Mustafa Mbari

0 Answers Avg Quality 2/10

java singleton

Comment

public class SingletonOnDemand {
	
	private SingletonOnDemand () {}
	private static class Singleton {
		private static final SingletonOnDemand instance = new SingletonOnDemand();
	}
	
	public static SingletonOnDemand getInstance () {
		System.out.println("create instance");
		return Singleton.instance;
	}
}

Popularity 10/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on May 18 2020

Super Stoat

0 Answers Avg Quality 2/10

java singleton

Comment

public class DB {
    // champs de l'objet

    private DB(){
        // initialisation des champs
    }

    private static final DB INSTANCE = new DB();
    public static DB getInstance(){
        return INSTANCE;
    }
}

Popularity 10/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Dec 16 2021

Silly Sheep

0 Answers Avg Quality 2/10

java singleton

Comment

public final class SomeSingleton {
   public static final SomeSingleton INSTANCE;

   private SomeSingleton() {
      INSTANCE = (SomeSingleton)this;
      System.out.println("init complete");
   }

   static {
      new SomeSingleton();
   }
}

Popularity 10/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Apr 21 2021

VasteMonde

0 Answers Avg Quality 2/10

Java Singleton pattern

Comment

public class Singleton {
    private static Singleton instance;

    private Singleton() {}

    public static Singleton getInstance() {
        if (instance == null) {
            instance = new Singleton();
        }
        return instance;
    }
}

Popularity 9/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: java

Link to this answer
Share Copy Link

Contributed on Jul 26 2023

Cabs

0 Answers Avg Quality 2/10

Java Singleton Class Syntax

Comment

class SingletonExample {

   // private field that refers to the object
   private static SingletonExample singleObject;
                                              
   private SingletonExample() {
      // constructor of the SingletonExample class
   }

   public static SingletonExample getInstance() {
      // write code that allows us to create only one object
      // access the object as per our need
   }
}

Popularity 10/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: class clas

Link to this answer
Share Copy Link

Contributed on May 24 2022

SAMER SAEID

0 Answers Avg Quality 2/10

Java Singleton Class Syntax

Comment

class SingletonExample {

   // private field that refers to the object
   private static SingletonExample singleObject;
                                              
   private SingletonExample() {
      // constructor of the SingletonExample class
   }

   public static SingletonExample getInstance() {
      // write code that allows us to create only one object
      // access the object as per our need
   }
}

Popularity 10/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: class clas

Link to this answer
Share Copy Link

Contributed on May 24 2022

SAMER SAEID

0 Answers Avg Quality 2/10

java Singleton

Contents

More Related Answers

java Singleton

Closely Related Answers

java singleton implementation

java singleton

java singleton

java singleton

java singleton

Java Singleton pattern

Java Singleton Class Syntax

Java Singleton Class Syntax

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.