What is automatic type promotion in method calls? Give an example of how this works.

What will be an ideal response?


Java casts variables to a unifying type when you perform arithmetic with unlike types. For example, when you multiply an int and a double, the result is a double. In a similar way, Java can promote one data type to another when you pass a parameter to a method. For example, if a method has a double parameter and you pass in an integer, the integer is promoted to a double. Recall that the order of promotion is double, float, long, and int.

Computer Science & Information Technology

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