3.3 If Else Statements

Purpose of Else Statements

Else statements: Handles what happens when the if condition is false. Structure of If-Else:

  • If statement with a condition.
  • Else statement without a condition.
  • Both parts have code blocks surrounded by {}.

don’t forget the brackets

if (x > 10) {

        console.log("x is greater than 10");
        console.log("This code when the condition is true");
    } else {
    
        console.log("x is 10 or less");
        console.log("This code runs when the condition is false");
    }
    Without brackets:
    
    if (x > 10)
    
        console.log("x is greater than 10");
        console.log("this code will always run");

image

  1. Based on this code, if you were younger than 16 what would it print out?
  2. Write your own if else statement

you are not old enough

int num1 = 10;
int num2 = 1;
if (num1 > num2) {
    System.out.println("num1 is greater than num2");
}
else {
    System.out.println("num1 is not greater than num2");
}
num1 is greater than num2