java - Avoid multiple instances of Singleton? -

java - Avoid multiple instances of Singleton? -

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what efficient way implement singleton pattern in java? 25 answers

i believe when singleton object gets serialized , deserialized upon plethora of times in series, there multiple instances of singletons created.

how can avoid such situation?

normally, when creating singleton, create sure there 1 instance of it. way:

public static class singleton{ private final static singleton instance; private singleton(){} public static singleton getinstance(){ if(instance == null) instance = new singleton(); homecoming instance; } }

putting constructor private makes sure no 1 except class can create instance of singleton.

you need phone call singleton getinstance , singleton work on side.

java scala design-patterns singleton