我无法找到问题的问题。除了一件事，当我测试我的程序时，一切都会正确检查。在我执行程序时的打印语句中，它们不会像应该的那样正确更新运行状况。
import java.util.Random;
import java.util.Scanner;
public class Dragon {
private static int health;
private static int attack;
private static boolean isAlive = true;
private static int dragonHealth;
private static int dragonAttack;
private static boolean isDragonAlive = true;
public static int getHealth() {
if(health <= 0)
{
health = 0;
}
return health;
}
public void setHealth(int health) {
this.health = health;
}
public int getAttack() {
return attack;
}
public void setAttack(int attack) {
this.attack = attack;
}
public static int getDamage()
{
Random generator = new Random();
int attack = generator.nextInt(10) + 1;
health = health - dragonAttack;
return attack;
}
public static boolean getAlive()
{
if(getHealth() <= 0)
{
isAlive = false;
}
return isAlive;
}
///////////////////////////////////////////////////////
public static int getDragonHealth()
{
if(dragonHealth <= 0)
{
dragonHealth = 0;
}
return dragonHealth;
}
public void setDragonHealth(int dragonHealth)
{
this.dragonHealth = dragonHealth;
}
public int getDragonAttack() {
return dragonAttack;
}
public void setDragonAttack(int dragonAttack) {
this.dragonAttack = dragonAttack;
}
public static int getDragonDamage()
{
Random generator = new Random();
int dragonAttack = generator.nextInt(10) + 1;
dragonHealth = dragonHealth - attack;
return dragonAttack;
}
public static boolean getDragonAlive()
{
if(getDragonHealth() <= 0)
{
isDragonAlive = false;
}
return isDragonAlive;
}
/////////////////////////////
public String getWelcome()
{
String welcome = "Hello and welcome to Dragonslayer!";
return welcome;
}
public static String getStab()
{
String stab = "You choose to stab the dragon and dealt " + getDamage() + " damage. The dragon now has " + getDragonHealth() + " health remaining.";
return stab;
}
public static String getSlash()
{
String slash = "You choose to slash the dragon and dealt " + getDamage() + " damage. The dragon now has " + getDragonHealth() + " health remaining.";
return slash;
}
public static String getCut()
{
String cut = "You choose to cut the dragon and dealt " + getDamage() + " damage. The dragon now has " + getDragonHealth() + " health remaining.";
return cut;
}
public static String dragonAttack()
{
String dragonsAttack = "The dragon has done " + getDragonDamage() + " to you. You now have " + getHealth() + " health remaining.";
return dragonsAttack;
}
public static String getWinner()
{
String result = "";
if(getAlive() == false && getDragonAlive() == false)
{
result = "It is a horrid day today, as both you and the dragon have fallen.";
}
else if(getAlive() == true && getDragonAlive() == false)
{
result = "Congratulations you have killed the dragon, and survived!";
}
else if(getAlive() == false && getDragonAlive() == true)
{
result = "You have sadly fallen to the dragon, better luck next time.";
}
else
{
result = "SOMETHING WENT WRONG!!!";
}
return result;
}
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("You come across the dragon and you have two options. Do you run or fight? ");
Dragon dragon1 = new Dragon();
dragon1.setHealth(50);
Dragon dragon2 = new Dragon();
dragon2.setDragonHealth(50);
while(in.hasNextLine())
{
switch(in.nextLine())
{
case "run":
System.out.println("I am so sorry, you could not outrun the dragon, you have been killed!");
break;
case "fight":
while(getAlive() && getDragonAlive())
{
System.out.println("Do you want to stab, slash, or cut the dragon? ");
switch(in.nextLine())
{
case "stab":
System.out.println(getStab() + "\n" + dragonAttack());
break;
case "slash":
System.out.println(getSlash() + "\n" + dragonAttack());
break;
case "cut":
System.out.println(getCut() + "\n" + dragonAttack());
break;
default:
System.out.println("I am sorry that is not valid, try again. ");
}
}
break;
default:
System.out.println(getWinner());
break;
}
System.out.println("Congratulations, you have slayed the dragon!");
break;
}//end of while loop in.hasNextLine().
}//end of main
}//end of class
答案 0 :(得分：4)
在我执行程序时的打印语句中，它们不会像应该的那样正确更新运行状况。
您的健康字段是静态字段，因此类的字段不是实例的字段。每个龙将分享完全相同的健康值，这不是你想要的。我建议：
== true或== false，而是使用更简洁，易读的代码，只测试布尔变量或表达式本身。因此，而不是if (foo == true)和if (bar == false)执行if (foo)和if (!bar)。例如：
class Creature {
private int health;
private int attack;
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getHealth() {
return health;
}
public void setHealth(int health) {
this.health = health < 0 ? 0 : health;
}
public int getAttack() {
return attack;
}
public void setAttack(int attack) {
this.attack = attack;
}
public boolean isAlive() {
return health > 0;
}
}
class Dragon extends Creature {
// add Dragon specific methods
}
class Warrior extends Creature {
// add Warrier specific methods
}
答案 1 :(得分：1)
我想你要改变
public static int getDamage()
{
Random generator = new Random();
int attack = generator.nextInt(10) + 1;
health = health - dragonAttack;
return attack;
}
要：
public static int getDamage()
{
Random generator = new Random();
setAttack(generator.nextInt(10) + 1);
health = health - dragonAttack;
return attack;
}
同样适用于getDragonDamage ...... 你正在设置一个局部变量（在这种情况下是攻击）并期望它在getDragonDamage中更新