Java编程，寻找数组中某个键的连接

Question

/*
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package w01s03p;

import static java.sql.Types.NULL;
import java.util.Scanner;

/**
 *
 * @author WIN8
 */
public class task5 {

    private static int hitLevel;
    private static int attackLevel;
    private static int defLevel;
    private static int LEVEL;
    private static int numberOfData;
    private static String[] arrName;
    private static int dataCounter;
    private static int dataOfCounter;
    private static int inputChoice;
    private static double temp;

    public static void main(String[] _args) {

        int numberOfData = 3;
        int i, temp = 0;
        int inputChoice;
//declaration
        String[] arrName;
        double[] arrHP;
        double[] arrAP;
        double[] arrDP;
        double[] hitLevel;
        double[] attackLevel;
        double[] defLevel;
        double[] LEVEL;

        //instantiation
        arrName = new String[numberOfData];
        arrHP = new double[numberOfData];
        arrAP = new double[numberOfData];
        arrDP = new double[numberOfData];
        hitLevel = new double[numberOfData];
        attackLevel = new double[numberOfData];
        defLevel = new double[numberOfData];
        LEVEL = new double[numberOfData];

        do {
            Scanner scanner = new Scanner(System.in);
            System.out.println("--------------------");
            System.out.println("Monsville Tournament");
            System.out.println("--------------------");
            System.out.println("1.List Monster");
            System.out.println("2.Best By Hits Point");
            System.out.println("3.Best By Attack Point");
            System.out.println("4.Best By Defense Attack");
            System.out.println("5.Search Profile");
            System.out.println("6.Registration Monster");
            System.out.println("0.Quit");
            inputChoice = Keyin.inInt(" Your Choice: ");
            switch (inputChoice) {
                case 1:
                    System.out.println("List Monster : ");
                    if (arrName == null) {
                        System.out.println("Input Monster");
                    } else {
                        for (i = 0; i < 2; i++) {
                            System.out.println("Monster Name " + arrName[i]);
                        }
                    }
                    break;
                case 2:
                    System.out.println("Daftar Best HP!");
                    if(arrHP != null){
                    for (i = 0; i < 2; i++) {
                        if (arrHP[i] < arrHP[i + 1]) {
                            temp = (int) arrHP[i + 1];
                            arrHP[i + 1] = arrHP[i];
                            arrHP[i] = temp;
                        }
                        System.out.println("HP (" + arrHP[i] + ")    :" + arrName[i]);
                    }
                    }
                    break;
                case 3:
                    System.out.println("Daftar Best AP!");
                    for (i = 0; i < 2; i++) {
                        if (arrAP[i] < arrAP[i + 1]) {
                            temp = (int) arrAP[i + 1];
                            arrAP[i + 1] = arrAP[i];
                            arrAP[i] = temp;
                        }
                        System.out.println("AP (" + arrAP[i] + ")    :" + arrName[i]);
                    }
                    break;
                case 4:
                    System.out.println("Daftar Best DP!");
                    for (i = 0; i < 2; i++) {
                        if (arrDP[i] < arrDP[i + 1]) {
                            temp = (int) arrDP[i + 1];
                            arrDP[i + 1] = arrDP[i];
                            arrDP[i] = temp;
                        }
                        System.out.println("DP (" + arrDP[i] + ")    :" + arrName[i]);
                    }
                    break;
                case 5:
                    System.out.println("Search Profile Monster");
                    break;
                case 6:
                    for (i = 0; i < 2; i++) {
                        System.out.print("Monster Name: ");
                        arrName[i] = scanner.next();
                        System.out.print("hit point: ");
                        arrHP[i] = scanner.nextInt();
                        System.out.print("attack point: ");
                        arrAP[i] = scanner.nextInt();
                        System.out.print("defense point: ");
                        arrDP[i] = scanner.nextInt();
                    }
                    break;
                default:
                    System.out.println("Invalid selection");
                    break;
            }
        } while (inputChoice != 0);

        for (i = 0; i < 2; i++) {
            if (arrHP[i] >= 100) {
                hitLevel[i] = 3;
            } else if ((arrHP[i] >= 50) && (arrHP[i] < 100)) {
                hitLevel[i] = 2;
            } else if (arrHP[i] < 50) {
                hitLevel[i] = 1;
            }
        }
        for (i = 0; i < 2; i++) {
            if (arrAP[i] >= 20) {
                attackLevel[i] = 3;
            } else if ((arrAP[i] >= 10) && (arrAP[i] < 20)) {
                attackLevel[i] = 2;
            } else if (arrAP[i] < 10) {
                attackLevel[i] = 1;
            }
        }
        for (i = 0; i < 2; i++) {
            if (arrDP[i] >= 15) {
                defLevel[i] = 3;
            } else if ((arrDP[i] >= 5) && (arrAP[i] < 15)) {
                defLevel[i] = 2;
            } else if (arrDP[i] < 5) {
                defLevel[i] = 1;
            }
        }

        for (i = 0; i < 2; i++) {
            LEVEL[i] = +hitLevel[i] + attackLevel[i] + defLevel[i];
        }

        System.out.println("---------monster profile ---------\"");

        for (i = 0; i < 2; i++) {
            System.out.println("name         : \"" + arrName[i] + "\"");
            System.out.println("hit point    :" + arrHP[i]);
            System.out.println("attack point :" + arrAP[i]);
            System.out.println("defense point:" + arrDP[i]);
            System.out.println("level        :" + LEVEL[i] + "(" + arrHP[i] + "/" + arrAP[i] + "/" + arrDP[i] + ")");
        }

    }

}

我希望在搜索查询中通过怪物的名称找到怪物，但我不知道如何通过怪物的名称搜索怪物的信息。怪物的信息分散在许多数组中。如果 inputChoice 为 5，那么它应该提示用户查找怪物的个人资料。

谢谢

Answer 1

One hint: do not create 5 different arrays that carry different properties of a "player" (like one for player names, one for player points, ..). Instead: create a class that represents one Player and give that class all the attributes that a player should have. And then create one array to hold player objects! – GhostCat

GhostCat 的完美回应。

但是如果你不听从他的建议，你就必须这样做:

1. 从控制台获取输入，即:怪物的名称；
2. 在怪物数组中搜索名称。
3. 如果名称与输入相符，则保存该怪物的索引
4. 使用该索引号获取该怪物的所有信息。

代码看起来类似于:

String searchQuery = scanner.next();
int indexFound = -1;
for(int x = 0; x < arrName.length; x++) {
    if(arrName[x] != null && (arrName[x].toLowerCase().equals(searchQuery.toLowerCase()) || arrName[x].toLowerCase().contains(searchQuery.toLowerCase())) {
        indexFound = x;
        break;
    }
}

if(indexFound != -1) {
    System.out.println("Monster Found by the name of " + searchQuery)
    System.out.println("name         : \"" + arrName[indexFound] + "\"");
    System.out.println("hit point    :" + arrHP[indexFound]);
    System.out.println("attack point :" + arrAP[indexFound]);
    System.out.println("defense point:" + arrDP[indexFound]);
    System.out.println("level        :" + LEVEL[indexFound] + "(" + arrHP[indexFound] + "/" + arrAP[indexFound] + "/" + arrDP[indexFound] + ")");
} else {
    System.out.println("Monster not found");
}

将该段代码放在 case 5: 下。