What are the rules for operators in Java?
The rules for operators in Java are as follows:
- Arithmetic operators: +, -, *, /, % (modulus).
- When performing arithmetic operations on integer types, the result will still be an integer type.
- Arithmetic operations involving floating point numbers always result in a floating point number type.
- Assignment operators include =, +=, -=, *=, /=, %=, etc.
- One option : It is possible to assign a value to a variable.
- It is possible to perform operations on variables and assign the results to variables.
- Increment and decrement operators: ++, –.
- Used for performing increment or decrement operations on variables.
- The prefix form (++i, –i) first performs the increment or decrement operation before carrying out the expression calculation.
- The postfix form (i++, i–) evaluates the expression first before performing the increment or decrement operation.
- Relationship operators include ==, !=, >, <, >=, and <=.
- Used to compare the relationship between two operands and return a boolean value of true or false.
- Logical operators: && (AND), || (OR), ! (NOT).
- Used for performing logical operations on boolean values.
- Both && and || are short-circuit operators, meaning that if the first operand can determine the outcome of the entire expression, the second operand will not be evaluated.
- Used to negate, turning true into false and false into true.
- Bitwise operators include: & (AND), | (OR), ^ (XOR), ~ (NOT), << (left shift), >> (right shift), etc.
- Used for performing bitwise operations on integer data types.
- Ternary operator: ?:
- Assign values based on conditions.
- instanceof operator:
- It is used to check if an object is an instance of a certain class, returning a boolean value of true or false.
- Typecasting operator: (type).
- It is used to convert one data type into another data type.
- Other operators: dot operator, subscript operator, etc.
- Used to access properties, methods, or elements of an object or array.
