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
// if I was younger than 16, it would print out "You are not old enough for a license yet."

// if else statement code below
int age = 20; 

if (age < 13) {
    System.out.println("you are very young");
} else if (age >= 13 && age < 20) {
    System.out.println("you are a teen ");
} else if (age >= 20 && age < 65) {
    System.out.println("your pretty young.");
} else {
    System.out.println("hi");
}

your pretty young.
if (x >= 16) {

        console.log("You areold enough to drive");
        console.log("This code when the condition is true");
    } else {
    
        console.log("Grow older!");
        console.log("This code runs when the condition is false");
    }

    

|           console.log("You areold enough to drive");

illegal character: '\u00a0'



|           console.log("You areold enough to drive");

illegal character: '\u00a0'



|           console.log("You areold enough to drive");

illegal character: '\u00a0'



|           console.log("You areold enough to drive");

illegal character: '\u00a0'



|           console.log("This code when the condition is true");

illegal character: '\u00a0'



|           console.log("This code when the condition is true");

illegal character: '\u00a0'



|           console.log("This code when the condition is true");

illegal character: '\u00a0'



|           console.log("This code when the condition is true");

illegal character: '\u00a0'



|           console.log("Grow older!");

illegal character: '\u00a0'



|           console.log("Grow older!");

illegal character: '\u00a0'



|           console.log("Grow older!");

illegal character: '\u00a0'



|           console.log("Grow older!");

illegal character: '\u00a0'



|           console.log("This code runs when the condition is false");

illegal character: '\u00a0'



|           console.log("This code runs when the condition is false");

illegal character: '\u00a0'



|           console.log("This code runs when the condition is false");

illegal character: '\u00a0'



|           console.log("This code runs when the condition is false");

illegal character: '\u00a0'