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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