The if statement tests the condition. It executes the if block if a condition is true.
Syntax
if(condition){ //code to be executed }
Here, if statement may be a single statement or a compound statement enclosed in curly braces (that is, a block).
The statements get executed only when the given condition is true. If the condition is false then the statements inside if statement body is completely ignored.
Kotlin - if statement example
package net.javaguides.kotlin fun main(args: Array < String > ) { var x = 10; var y = 20; if (x < y) { System.out.println("x is less than y"); } x = x * 2; if (x == y) { System.out.println("x now equal to y"); } x = x * 2; if (x > y) { System.out.println("x now greater than y"); } // this won't display anything if (x == y) { System.out.println("you won't see this"); } }
Output:
x is less than y x now equal to y x now greater than y
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