Java – = what’s the difference between = and =?

• Java

=What's the difference between and?

Solution

i += 4;
i += 4;

means

i = i + 4;  // increase i by 4.

and

i =+ 4;

amount to

i = +4;   // assign 4 to i. the unary plus is effectively no-op.

(see http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls -15.15. 3 why is it one yuan

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