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C Language > Learn C Language > Explain 'pass by value' and 'pass by reference.'
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Explain 'pass by value' and 'pass by reference.'

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Experienced Computer trainer having worked in IT sector for 20 years.

Pass by value: The method parameter values are copied to another variable and then the copied object is passed to the method. The method uses the copy. Pass by reference: An alias or reference to the actual parameter is passed to the method. The method accesses the actual parameter.
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