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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.
1, bitwise operatorsThe bitwise operator is used to set the specified bit of an integer number, and if the operand is a string, the ASCII value of the string is manipulated.
Type of operation
Operator
Example
Results
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
1, bitwise operatorsThe bitwise operator is used to set the specified bit of an integer number, and if the operand is a string, the ASCII value of the string is manipulated.
Type of operation
Operator
Example
Results
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:
12
inta = 4;(++a) += i;
Evaluate the value of a. The correct answer is 10.
If you think
Relationship and comparison operators:equals: =Greater than:>Greater than or equal to: >=Less than:Less than equals: Not equal to:! =Increment and decrement operators: operators and locationsOperators: + + and--Position:Front: Calculate first,
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
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
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