What is Pass by Reference?
Pass by Reference means the memory address of the variable is passed. Modifications inside the function will alter the original variable's data.
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More FAQs in Pass by Value vs Pass by Reference Explained
Pass by Value means a copy of the variable's data is passed to the function. Modifications inside the function do not affect the original variable.
Java is strictly pass-by-value. However, for objects/arrays, the 'value' passed is the memory reference, which allows the object's contents to be modified.
Because integers are primitives. Java passes a copy of the primitive value, so the original variable remains untouched.
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