| nested if-else statement | a semicolon | braces if there is only one embedded statement | if (length < 10) {    System.out.println("Small"); } else {    if (length < 20){       System.out.println("Medium");    } else {       System.out.println("Large");    } }  | if (boolean expression) {    if-true statement else    if-false statement } | to make a decision on which branch of code to follow in a program | not more than one line long if possible | bold = mandatory italic = non-terminal normal font = optional  | an if statement or an if-else statement as its embedded statements | Loops and Decision Making | if-else statement | else block |