Assignment operators include an implicit cast. : Assignment Operators « Operators « SCJP

2.10.6.Assignment operators include an implicit cast.

1. byte x = 2;

2. x += 3;



If this had been written using the longhand approach



1. byte x = 2;

2. x = (byte)(x + 3);

2.10.Assignment Operators
	2.10.1.	Assignment Operator Summary
	2.10.2.	Compound Assignment Operators
	2.10.3.	An arithmetic operator with = perform an operation on the variable on the left side and store the results in the variable.
	2.10.4.	a = b = c is evaluated as a = (b = c).
	2.10.5.	Simple assignment uses =
	2.10.6.	Assignment operators include an implicit cast.
	2.10.7.	Java uses the + and += operators to indicate concatenation for string values.
	2.10.8.	compound additive operator (+=) and Strings

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