java - 如何在 if 语句中定义变量并在该语句之外使用它们？

Question

if (difficulty.equals("easy")) {
    System.out.println("Setting stats to " + difficulty);
    int food = 3000;
    int foodperson = 5;
    int energy = 0;
    int hulltotal = 5000;
    int hullhealth = 5000;
    int enemy1basehealth = 10;
    int enemy1basedamage = 1;
    int daystillevents = 80;
}

System.out.println("food: " + food);

当您尝试打印 food 变量时，您会收到错误。您如何才能使当您尝试打印它时，它能够成功打印正确的信息？

Answer 1

在 if 语句之外定义它们。

int food = 0;
int foodperson = 0;
int energy = 0;
int hulltotal = 0;
int hullhealth = 0;
int enemy1basehealth = 0;
int enemy1basedamage = 0;
int daystillevents = 0;

if(difficulty.equals("easy")){
    System.out.println("Setting stats to " + difficulty);
    food = 3000;
    foodperson = 5;
    energy = 0;
    hulltotal = 5000;
    hullhealth = 5000;
    enemy1basehealth = 10;
    enemy1basedamage = 1;
    daystillevents = 80;
}
System.out.println("food: " + food);