Operators
An operator is a symbol which has special meaning and performs an operation on single or multiple operands like addition, substraction etc. Scala provides rich set of in-built operators.
Types of Operators in Scala
1. Arithmetic Operators
Arithmetic operators are used to perform arithmetic operations on operands.
| Operator | Description | Example |
|---|---|---|
| + | Used to perform Addition | 8+2 = 10 |
| - | Used to perform Subtraction | 12-2 = 10 |
| * | Used to perform Multiplication | 5*2 = 10 |
| / | Used to perform Division and returns float values | 10/3 = 3.3333 |
| % | Used to return Remainder | 40%10 = 0 |
2. Comparison Operators
Comparison operators are used to compare two operands.
| Operator | Description | Usage |
|---|---|---|
| == | Is equal to | x == y |
| != | Not equal to | !=x |
| > | Greater than | x > y |
| >= | Greater than or equal to | x >= y |
| < | Less than | x < y |
| <= | Less than or equal to | x <= y |
3. Bitwise Operators
Bitwise operators are used to perform bitwise operations on operands.
| Operator | Description | Usage |
|---|---|---|
| & | Bitwise AND | (x > y) & (y > z) |
| | | Bitwise OR | (x > y) | (y > z) |
| ^ | Bitwise XOR | (x > y) ^ (y > z) |
| ~ | Bitwise NOT | (~x) |
| << | Bitwise Left Shift | x << y |
| >> | Bitwise Right Shift | x >> y |
| >>> | Shift right zero fill operator | x >>> y |
4. Logical Operators
Logical operators are as shown below:
| Operator | Description | Usage |
|---|---|---|
| && | Logical AND | (x > y) && (y > z) |
| || | Logical OR | (x > y) || (y > z) |
| ! | Logical NOT | (!x) |
5. Assignment Operators
Assignment operators are as shown below:
| Operator | Description | Usage |
|---|---|---|
| = | Assign | x = 10; |
| += | Add and assign | x=10; x+=30; //x becomes 40 |
| -= | Subtract and assign | x=40; x-=10; //x becomes 30 |
| *= | Multiply and assign | x=10; x*=40; //x becomes 400 |
| /= | Divide and assign | x=100; x /= 10; //x becomes 10 |
| %= | Modulus and assign | x=100; x%=10; //x becomes 0 |
| <<= | Bitwise Left Shift and assign | x <<= 2; // x = x << 2 |
| >>= | Bitwise Right Shift and assign | x >>= 2; // x = x >> 2 |
| &= | Bitwise AND and assign | x &= y; // x = x & y |
| |= | Bitwise OR and assign | x |= y; // x = x | y |
| ^= | Bitwise XOR and assign | x ^= y; // x = x ^ y |
Summary
| Type | Operators |
|---|---|
| Arithmetic Operators | + , - , * , / , % |
| Comparision Operators | == , != , > , >= , < , <= |
| Bitwise Operators | & , ^ , | , ^ , ~ , << , >> , >>> |
| Logical Operators | && , || , ! |
| Assignment Operators | = , += , -= , *= , /= , %= , &= , ^= , |= , <<= , >>= |