When does spring create instances to be injected ?

When does spring create instances to be injected ?

When does spring create instances to be injected ?

This is one of the famous spring / spring boot framework interview question.

  • Spring creates the instances to be injected during the start up.
  • If you have configured spring beans with lazy-init attribute then spring creates the instances of those bean only when you inject/any of it’s dependencies injects it.
  • By default, Application Context creates the instances of all the beans eagerly with singleton scope during it’s initialization process only.

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