Operators in Dart

08 Mar, 2022
The operators are special symbols that are used to carry out certain operations on the operands. The Dart has numerous built-in operators which can be used to carry out different functions, for example, ‘+’ is used to add two operands. Operators are meant to carry operations on one or two operands. 
The following are the various types of operators in Dart:
Arithmetic OperatorsRelational OperatorsType Test OperatorsBitwise OperatorsAssignment OperatorsLogical OperatorsConditional OperatorCascade Notation Operator
Arithmetic Operators
Relational Operators
Type Test Operators
Bitwise Operators
Assignment Operators
Logical Operators
Conditional Operator
Cascade Notation Operator
This class of operators contain those operators which are used to perform arithmetic operation on the operands. They are binary operators i.e they act on two operands. They go like this: 
Example: Using Arithmetic Operators in the program 
Dart
void main(){    int a = 2;    int b = 3;     // Adding a and b    var c = a + b;    print("Sum of a and b is $c");     // Subtracting a and b    var d = a - b;    print("The difference between a and b is $d");     // Using unary minus    var e = -d;    print("The negation of difference between a and b is $e");     // Multiplication of a and b    var f = a * b;    print("The product of a and b is $f");     // Division of a and b    var g = b / a;    print("The quotient of a and b is $g");     // Using ~/ to divide a and b    var h = b ~ / a;    print("The quotient of a and b is $h");     // Remainder of a and b    var i = b % a;    print("The remainder of a and b is $i");}
Output: 
Sum of a and b is 5
The difference between a and b is -1
The negation of difference between a and b is 1
Product of a and b is 6
The quotient of a and b is 1.5
The quotient of a and b is 1
The remainder of a and b is 1
This class of operators contain those operators which are used to perform relational operation on the operands. It goes like this: 
Example: Using Relational Operators in the program 
Dart
void main(){    int a = 2;    int b = 3;     // Greater between a and b    var c = a > b;    print("a is greater than b is $c");     // Smaller between a and b    var d = a < b;    print("a is smaller than b is $d");     // Greater than or equal to between a and b    var e = a >= b;    print("a is greater than b is $e");     // Less than or equal to between a and b    var f = a <= b;    print("a is smaller than b is $f");     // Equality between a and b    var g = b == a;    print("a and b are equal is $g");     // Unequality between a and b    var h = b != a;    print("a and b are not equal is $h");}
Output: 
a is greater than b is false
a is smaller than b is true
a is greater than b is false
a is smaller than b is true
a and b are equal is false
a and b are not equal is true 
This class of operators contain those operators which are used to perform comparison on the operands. It goes like this: 
Example: Using Type Test Operators in the program 
Dart
void main(){    String a = 'GFG';    double b = 3.3;     // Using is to compare    print(a is String);     // Using is! to compare    print(b is !int);}
Output: 
true
true
This class of operators contain those operators which are used to perform bitwise operation on the operands. It goes like this: 
Example: Using Bitwise Operators in the program 
Dart
void main(){    int a = 5;    int b = 7;     // Performing Bitwise AND on a and b    var c = a & b;    print(c);     // Performing Bitwise OR on a and b    var d = a | b;    print(d);     // Performing Bitwise XOR on a and b    var e = a ^ b;    print(e);     // Performing Bitwise NOT on a    var f = ~a;    print(f);     // Performing left shift on a    var g = a << b;    print(g);     // Performing right shift on a    var h = a >> b;    print(h);}
Output: 
5
7
2
4294967290
640
0 
This class of operators contain those operators which are used to assign value to the operands. It goes like this: 
Example: Using Assignment Operators in the program 
Dart
void main(){    int a = 5;    int b = 7;     // Assigning value to variable c    var c = a * b;    print(c);     // Assigning value to variable d    var d;    d ? ? = a + b; // Value is assign as it is null    print(d);    // Again trying to assign value to d    d ? ? = a - b; // Value is not assign as it is not null    print(d);}
Output: 
35
12
12 
This class of operators contain those operators which are used to logically combine two or more conditions of the operands. It goes like this: 
Example: Using Logical Operators in the program 
Dart
void main(){    int a = 5;    int b = 7;     // Using And Operator    bool c = a > 10 && b < 10;    print(c);     // Using Or Operator    bool d = a > 10 || b < 10;    print(d);     // Using Not Operator    bool e = !(a > 10);    print(e);}
Output: 
false
true
true
This class of operators contain those operators which are used to perform comparison on the operands. It goes like this: 
Example: Using Conditional Operators in the program 
Dart
void main(){    int a = 5;    int b = 7;     // Conditional Statement    var c = (a < 10) ? "Statement is Correct, Geek" : "Statement is Wrong, Geek";    print(c);     // Conditional statement    int n;    var d = n ? ? "n has Null value";    print(d);     // After assigning value to n    n = 10;    d = n ? ? "n has Null value";    print(d);}
Output: 
Statement is Correct, Geek
n has Null value
10 
This class of operators allows you to perform a sequence of operation on the same element. It allows you to perform multiple methods on the same object. It goes like this: 
Example: Using Cascade Notation Operators in the program 
Dart
class GFG {    var a;    var b;     void set(x, y)    {        this.a = x;        this.b = y;    }     void add()    {        var z = this.a + this.b;        print(z);    }} void main(){    // Creating objects of class GFG    GFG geek1 = new GFG();    GFG geek2 = new GFG();     // Without using Cascade Notation    geek1.set(1, 2);    geek1.add();     // Using Cascade Notation    geek2..set(3, 4)        ..add();}
Output: 
3
7
Akanksha_Rai
almostsagar
sagar0719kumar
clintra
kothavvsaakash
Dart-basics
Dart
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