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Java / JVM

Explain the role of the class loader.

The class loader performs the below 3 activities in the mentioned order:

Loading: finds and imports the binary data for a type.

Linking: performs verification, preparation, and optionally resolution.

  • Verification: ensures the correctness of the imported type.
  • Preparation: allocates memory for class variables and initializing the memory to default values.
  • Resolution: transforms symbolic references from the type into direct references.

Initialization: invokes Java code that initializes class variables to their proper starting values.

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