Dart if-else Statement

In Dart, if-block is executed when the given condition is true. If the given condition is false, else-block is executed. The else block is associated with the if-block.

Dart if…else Statement Flow Diagram

Syntax:

if(condition) {
      // statement(s);
} else {
    // statement(s);
}

Here, if -else statement is used for either types of result TRUE or False. If the given condition evaluates true, then if body is executed and if the given condition evaluates false; then, the else body is executed.

Let's understand the following example.

Example -

void main() {
     var x = 20;
     var y = 30;
    print("if-else statement example");

    if(x > y){
         print("x is greater than y");   
} else {
         print("y is greater than x");

};

}

Output:

if-else statement example
y is greater than x

Explanation -

In the above code, we have two variables which stored integer value. The given condition evaluated false then it printed the else-block.

Example -2 Write a program to find the given number is even or odd.

void main() {
     var num = 20;
     
    print("if-else statement example");

    if(num%2 == 0){
         print("The given number is even");   
} else {
         print("The given number is odd");
};
}

Output:

If-else statement example
The given number is even

Explanation -

In the above example, we have an integer variable num which stored 20 and we used the if-else statement to check whether a given number is even of odd. The given condition evaluated true because modulus of 20 is equal to 0 then it printed the given number is even on the screen.

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