Java如何重置＆＃34;设置＆＃34;更改后的值

Question

public static void reset() {
        //goblin
        stats gob = new stats();
        gob.setName("Goblin");
        gob.setHP(15);
        gob.setATK(3);
        //END-goblin

        //orc
        stats orc = new stats();
        orc.setName("Orc");
        orc.setHP(25);
        orc.setATK(5);
        //END-orc

        stats[] enemies = new stats[3];
        enemies[1] = new stats();
        enemies[1] = gob;
        enemies[1].getName();
        enemies[1].getHP();
        enemies[1].getATK();
        enemies[2] = new stats();
        enemies[2] = orc;
        enemies[2].getName();
        enemies[2].getHP();
        enemies[2].getATK();
    }

    public static void fight() {

        //user
        player user = new player();
        user.setP_Name(username);
        user.setP_ATK(atk);
        user.setP_HP(hp);
        //END-user

        //goblin
        stats gob = new stats();
        gob.setName("Goblin");
        gob.setHP(15);
        gob.setATK(3);
        //END-goblin

        //orc
        stats orc = new stats();
        orc.setName("Orc");
        orc.setHP(25);
        orc.setATK(5);
        //END-orc

        stats[] enemies = new stats[3];
        enemies[1] = new stats();
        enemies[1] = gob;
        enemies[1].getName();
        enemies[1].getHP();
        enemies[1].getATK();
        enemies[2] = new stats();
        enemies[2] = orc;
        enemies[2].getName();
        enemies[2].getHP();
        enemies[2].getATK();

        System.out.println("\u001B[32m" + "\nWelcome to Gilenor, " + user.getP_Name() + "." + "\u001B[39m"
                + "\u001B[32m" + "\nIn this world, you will fight monsters consecutively," + "\u001B[39m"
                + "\u001B[32m" + "\nattempting to get through all of them." + "\u001B[39m"
                + "\u001B[32m" + "\nFor each enemy you kill, you will grow stronger." + "\u001B[39m"
                + "\u001B[32m" + "\nFlee to go back to the past enemy, but do not flee on your first enemy!" + "\u001B[39m"
                + "\u001B[32m" + "\nA fair warning to you, " + user.getP_Name() + ":" + "\u001B[39m"
                + "\u001B[32m" + "\nEach monster gets stronger after every win. Good luck!" + "\u001B[39m");

        int answer = 0;
        int d;
        int e;
        boolean alive;

        int i;
        for (i = 1; i < 3; i++) {

            System.out.print("\n");

            System.out.println(enemies[i].getName() + " has appeared!");

            System.out.print("\n");

            alive = true;

            while (alive == true) {

                reset();

                System.out.println(enemies[i].getName() + " stats:");
                System.out.println("Hitpoints[HP]: " + enemies[i].getHP());
                System.out.println("Attack[ATK]  : " + enemies[i].getATK());
                System.out.print("\n");

                if (user.getP_HP() > 0) {
                    System.out.println("\u001B[34m" + "[1 - Attack]" + "\u001B[39m");
                    System.out.println("\u001B[34m" + "[2 - Flee]" + "\u001B[39m");

                    answer = In.getInt();

                    clrscr();

                    System.out.print("\n");
                } else if (user.getP_HP() <= 0) {
                    System.out.println(user.getP_Name() + " has been slain by the " + enemies[i].getName() + "!");
                    return;
                }

                if (answer == 1) {

                    d = enemies[i].getHP() - user.getP_ATK();
                    enemies[i].setHP(d);

                    System.out.println(user.getP_Name() + " strikes the " + enemies[i].getName() + " for " + user.getP_ATK() + " damage.");
                    System.out.println(enemies[i].getName() + " has " + enemies[i].getHP() + " HP remaining.");
                    System.out.print("\n");

                    if (enemies[i].getHP() > 0) {
                        e = user.getP_HP() - enemies[i].getATK();
                        user.setP_HP(e);

                        System.out.println("The " + enemies[i].getName() + " attacked " + user.getP_Name() + "for " + enemies[i].getATK() + " damage.");
                        System.out.println(user.getP_Name() + " has " + user.getP_HP() + " HP remaining.");
                        System.out.println("\n");
                    } else if (enemies[1].getHP() <= 0) {

                        System.out.println("\u001B[32m" + user.getP_Name() + " has slain the " + enemies[i].getName() + "!" + "\u001B[39m"
                                + "\u001B[32m" + "\nYou have gained " + (i * 1) + " attack and " + i * 10 + " HP!" + "\u001B[39m");

                        user.setP_ATK(user.getP_ATK() + (i * 1));
                        user.setP_HP(user.getP_HP() + (i * 10));

                        alive = false;
                    }

                } else if (answer == 2) {
                    if (i == 1) {
                        System.out.println("You ran from your first enemy, tripped, then died! How embarassing!");
                        alive = false;
                        return;
                    } else {
                        System.out.println("You ran away, back to the last monster you saw!");
                        System.out.print("\n");
                        i = (i - 1);
                    }
                }
            }
        }
    } //fight method

在这段代码中，我为对象设置值，然后将它们放入一个名为

的数组中

敌人。然后，我使用

更改对象元素的值

敌人阵列。在＆＃34; HP＆＃34;之后元素数组的值达到零，它变为

到下一个元素。我做到了这样，用户可以回到上一个元素

并重新执行此操作，但该元素仍具有与用户第一个

时相同的值

改变了他们。我把所有的＆＃34;设置＆＃34;和最初定义的敌人阵列

将值转换为方法并尝试调用它以便重置，但我不是

运气。有什么方法可以做到这一点吗？

修改

对于那些想知道的人，这是我的廉价解决方法：

public static void fight() {

    //user
    player user = new player();
    user.setP_Name(username);
    user.setP_ATK(atk);
    user.setP_HP(hp);
    //END-user

    System.out.println("\u001B[32m" + "\nWelcome to Gilenor, " + user.getP_Name() + "." + "\u001B[39m"
            + "\u001B[32m" + "\nIn this world, you will fight monsters consecutively," + "\u001B[39m"
            + "\u001B[32m" + "\nattempting to get through all of them." + "\u001B[39m"
            + "\u001B[32m" + "\nFor each enemy you kill, you will grow stronger." + "\u001B[39m"
            + "\u001B[32m" + "\nFlee to go back to the past enemy, but do not flee on your first enemy!" + "\u001B[39m"
            + "\u001B[32m" + "\nA fair warning to you, " + user.getP_Name() + ":" + "\u001B[39m"
            + "\u001B[32m" + "\nEach monster gets stronger after every win. Good luck!" + "\u001B[39m");

    int answer = 0;
    int d;
    int e;
    boolean alive;

    int i;
    for (i = 1; i < 6; i++) { //CHEAP WORKAROUND
        //goblin1
        stats gob = new stats();
        gob.setName("Goblin");
        gob.setHP(15);
        gob.setATK(3);
        //END-goblin
        //orc2
        stats orc = new stats();
        orc.setName("Orc");
        orc.setHP(25);
        orc.setATK(5);
        //END-orc
        //pheonix3
        stats pheonix = new stats();
        pheonix.setName("Pheonix");
        pheonix.setHP(75);
        pheonix.setATK(5);
        //END-pheonix
        //ancient dragon4
        stats ancdr = new stats();
        ancdr.setName("Ancient Dragon");
        ancdr.setHP(220);
        ancdr.setATK(13);
        //END-ancient dragon
        //hades5
        stats hades = new stats();
        hades.setName("Hades");
        hades.setHP(500);
        hades.setATK(25);
        //END-hades
        stats[] enemies = new stats[6];
        enemies[1] = new stats();
        enemies[2] = new stats();
        enemies[3] = new stats();
        enemies[1] = gob;
        enemies[2] = orc;
        enemies[3] = pheonix;
        enemies[4] = ancdr;
        enemies[5] = hades;
        enemies[1].getName();
        enemies[2].getName();
        enemies[3].getName();
        enemies[4].getName();
        enemies[5].getName();
        enemies[1].getHP();
        enemies[2].getHP();
        enemies[3].getHP();
        enemies[4].getHP();
        enemies[5].getHP();
        enemies[1].getATK();
        enemies[2].getATK();
        enemies[3].getATK();
        enemies[4].getATK();
        enemies[5].getATK(); //CHEAP WORKAROUND

        System.out.print("\n");

        System.out.println(enemies[i].getName() + " has appeared!");

        System.out.print("\n");

        alive = true;

        while (alive == true) {

            System.out.println(enemies[i].getName() + " stats:");
            System.out.println("Hitpoints[HP]: " + enemies[i].getHP());
            System.out.println("Attack[ATK]  : " + enemies[i].getATK());
            System.out.print("\n");

            if (user.getP_HP() > 0) {
                System.out.println("\u001B[34m" + "[1 - Attack]" + "\u001B[39m");
                System.out.println("\u001B[34m" + "[2 - Flee]" + "\u001B[39m");

                answer = In.getInt();

                clrscr();

                System.out.print("\n");
            } else if (user.getP_HP() <= 0) {
                System.out.println(user.getP_Name() + " has been slain by the " + enemies[i].getName() + "!");
                return;
            }

            if (answer == 1) {

                d = enemies[i].getHP() - user.getP_ATK();
                enemies[i].setHP(d);

                System.out.println(user.getP_Name() + " strikes the " + enemies[i].getName() + " for " + user.getP_ATK() + " damage.");
                System.out.println(enemies[i].getName() + " has " + enemies[i].getHP() + " HP remaining.");
                System.out.print("\n");

                if (enemies[i].getHP() > 0) {
                    e = user.getP_HP() - enemies[i].getATK();
                    user.setP_HP(e);

                    System.out.println("The " + enemies[i].getName() + " attacked " + user.getP_Name() + " for " + enemies[i].getATK() + " damage.");
                    System.out.println(user.getP_Name() + " has " + user.getP_HP() + " HP remaining.");
                    System.out.println("\n");
                } else if (enemies[1].getHP() <= 0) {

                    System.out.println("\u001B[32m" + user.getP_Name() + " has slain the " + enemies[i].getName() + "!" + "\u001B[39m"
                            + "\u001B[32m" + "\nYou have gained " + (i * 1) + " attack and " + i * 10 + " HP!" + "\u001B[39m");

                    user.setP_ATK(user.getP_ATK() + (i * 1));
                    user.setP_HP(user.getP_HP() + (i * 10));

                    alive = false;
                }

            } else if (answer == 2) {
                if (i == 1) {
                    System.out.println("You ran from your first enemy, tripped, then died! How embarassing!");
                    alive = false;
                    return;
                } else {
                    System.out.println("You ran away, back to the last monster you saw!");
                    System.out.print("\n");
                    i = (i - 1);
                }
            }
        }
    }
} //fight method

Answer 1

数组或任何集合都有一个UNDO方法，你需要设计自己的数据容器的最后状态，并在需要时根据需要恢复它

Answer 2

这里有很多事情没有意义：

在重置功能中：

// This stats[] array is local, it won't effect the one out side of the function...
stats[] enemies = new stats[3]; // Why size 3 if only use 2? first index is 0.
enemies[1] = new stats(); // This new stats instance will be override next line, so it have no effect.
enemies[1] = gob; // here you share reference to the gob instance, not copying it. so any change on 'enemies[1]' will in fact be apply on gob.
enemies[1].getName(); // Do nothing...
enemies[1].getHP(); // Do nothing...
enemies[1].getATK(); // Do nothing...
enemies[2] = new stats();
enemies[2] = orc;
enemies[2].getName();
enemies[2].getHP();
enemies[2].getATK();

这只是通过浏览第一个函数，检查其余功能甚至更少。抱歉，如果你有更具体的问题，我很乐意回答。