Relational Operators
In the following lesson, you will be introduced to relational operators.
Relational operators are operators that perform operations which compare operands of numeric types. For example, less than and greater than. Below is a list of the relational operators supported by Scala.
| Operator | Use |
|---|---|
> |
Checks if the value of the left operand is greater than the value of the right operand |
< |
Checks if the value of the left operand is less than the value of the right operand |
>= |
Checks if the value of the left operand is greater than or equal to the value of the right operand |
<= |
Checks if the value of the left operand is less than or equal to the value of the right operand |
!= |
Checks if the values of the two operands are equal or not |
Relational Operators yield a
Booleantype result.
Taking the first operand to be and the second operand to be , let’s look at an example for each operator.
val operand1 = 10val operand2 = 7println(operand1 > operand2)println(operand1 < operand2)println(operand1 >= operand2)println(operand1 <= operand2)println(operand1 != operand2)
We can also use relational operators on non-integer literals such as character literals. In this case, the compiler will compare the Unicode of the characters. Let’s look at an example where the first operand is a and the second operand is b. As a comes before b alphabetically, a would be less than b.
val operand1 = 'a'val operand2 = 'b'println(operand1 > operand2)println(operand1 < operand2)println(operand1 >= operand2)println(operand1 <= operand2)println(operand1 != operand2)
That sums up relational operators, let’s move on to logical operators in the next lesson.