Kotlin - if-else Statement Example

The if-else statement also tests the condition. It executes the if block if a condition is true otherwise else block, is executed.

Syntax:

if(condition){  
     statement 1; //code if condition is true  
}else{  
     statement 2; //code if condition is false  
}
Here, each statement may be a single statement or a compound statement enclosed in curly braces (that is, a block). The condition is an expression that returns a boolean value.
The if works like this: If the condition is true, then statement1 is executed. Otherwise, statement2 (if it exists) is executed.

Kotlin - if-else Statement Example

package net.javaguides.kotlin

fun main(args: Array < String > ) {

    var testscore = 76;
    var grade = ' ';

    if (testscore >= 90) {
        grade = 'A';
    } else if (testscore >= 80) {
        grade = 'B'
    } else if (testscore >= 70) {
        grade = 'C';
    } else if (testscore >= 60) {
        grade = 'D';
    } else {
        grade = 'F';
    }
    System.out.println("Grade = " + grade);
}
Output:
Grade = C


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