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overloaded operators and conversions--Self-increment/self-decrement operatorIntroduction:Self-increment, the decrement operator is often implemented by classes such as iterators that provide pointers-like behavior to access elements in a sequence.
Prefix increment and decrement operators: + + and-Grammar
+ + Unary-expression––unary-expression
NoteThe prefix increment operator (+ +) adds 1 to its operand, which is the result of an expression. The operand must be a left value that is not a
Like C, Java provides a rich shortcut for computing. These shortcuts can make the code more refreshing, easier to input, and easier for readers to read.Two good shortcuts are the increment and decrement operators (often referred to as "AutoIncrement"
One of the most basic uses of computers is to perform mathematical operations, and as a computer language, Java also provides a rich set of operators to manipulate variables. We can divide the operators into the following groups:
Arithmetic
Exercise caution when using the increment/Decrement Operators (C ++) and Decrement Operators
Incrementing ++ and decimal operators-both seemingly and in use, they all feel simple and elegant, but there are uncontrollable traps in them, we must be
Prefix and suffix of the auto-increment and auto-increment operators, and suffix of the operator prefix.
There is such a question in the exam:
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inta = 4;(++a) += i;
Evaluate the value of a. The correct answer is 10.
If you think
In C and C + +, the self-increment (+ +) and decrement (-) operators are often used in expressions to increase the value of a variable by 1 or minus 1, for example:++i (before using I, the value of I is added 1, if the original value of I is 3,
The self-increment and decrement operators in C + + provide a lot of convenience for adding 1 or minus 1 to objects, but they have both pre-and post-set forms and are prone to errors when used in combination with other operations, so write down
Believe that a lot of people have just started to learn programming, but also for this problem, the prefix and suffix, in a long time ago, there is no way to distinguish between + + and-operator prefix and suffix of the call. However, the C + + has
Absrtact: In C language teaching, the self-increment self-subtraction operator is widely used, and it has certain skill and difficulty. Among the many operators, the self-increment decrement operator is the most difficult to understand and the most
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