Unit 3 Team Teach - 3.3

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

int x = 20;
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:
        
   console.log("x is greater than 10");
   console.log("this code will always run");

|       console.log("x is greater than 10");

cannot find symbol

  symbol:   variable console



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

cannot find symbol

  symbol:   variable console



|       console.log("x is 10 or less");

cannot find symbol

  symbol:   variable console



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

cannot find symbol

  symbol:   variable console

1. Based on this code, if you were younger than 16 what would it print out?

2. Write your own if else statement

3. If I were younger than 16, it would print out “You are not old enough for a license yet.
4. Here is an if statement I wrote:

   if (1 > 2) {
    System.out.println("Mathematicians are all fools!");
   } else {
    System.out.println("It seems that 1 is not greater than 2");
   }