JAVA基础回顾 Part II：Java条件语句以及控制流

Jinhai‘s JAVA cheat sheet

Codecademy学习笔记 Part II

布尔操作符boolean operators

1. &&: and
2. ||: or
3.  !  : not

if语句
比较，等价，布尔操作符都可以用在控制流中

int shoeSize = 10;

if (shoeSize > 12) {
    System.out.println("Sorry, your shoe size is currently not in stock.");
} else if (shoeSize >= 6) {
    System.out.println("Your shoe size is in stock!");
} else {
    System.out.println("Sorry, this store does not carry shoes smaller than a size 6.");
}

三元表达式ternary expression

int pointsScored = 21;

char gameResult = (pointsScored > 20) ? 'W' : 'L';
System.out.println(gameResult);

条件语句conditional statements

int restaurantRating = 3;

switch (restaurantRating) {
    case 1: System.out.println("This restaurant is not my favorite.");
      break;
    case 2: System.out.println("This restaurant is good.");
      break;
    case 3: System.out.println("This restaurant is fantastic!");
      break;
    default: System.out.println("I've never dined at this restaurant.");
      break;
}