Arithmetic operators, relational operators, logical operators, bitwise operators for Java

The Java operator is divided into four categories:

Arithmetic Operators , Relational Operators , logical Operators , bit operators.

Arithmetic operator: +-*/% + +--

Relational operators: = = = = > >= < <=

Logical operator:&& | |  ! ^ & |

Bitwise operator:& | ~ ^ >> << >>>

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Java Basic data type:

Integer: Byte, short, int, long

Non-integral type: double, float

Non-numeric type: char[characters], boolean[Boolean]

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One: Arithmetic operators:

?: the arithmetic operator operand must be a numeric type .

Is divided into a unary operator and a two-tuple operator;

Unary operator with only one operand;

The binary operator has two operands, and the operator is between two operands.

Unary operators: Positive ' + ', minus '-', self-adding ' + + ', self-subtraction '--' these four.

The "+ +" and "--" operators, which allow only variables of numeric type, are not allowed in expressions;

"+ +" and "--" can be used before or after a numeric variable;

Difference between two uses:

"+ +" and "--" before the numeric variables, in the assignment operation, the value of "+ +" or "--" action variable values first added 1 or minus 1, and then do other operations;

After the "+ +" and "--" are used for numeric variables, in the assignment operation, the value of the operation variable of "+ +" or "--" is first used for other operations, and then the value is added 1 or minus 1.

Arithmetic operators, relational operators, logical operators, bitwise operators for Java