Java中 ["seven", "fourteen"]判断是否包含"1"

在Java中，可以使用`List`的`contains`方法来判断一个列表是否包含某个元素。下面是一个示例代码[^1]：

import java.util.Arrays;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        List<String> list = Arrays.asList("seven", "fourteen");
        boolean containsOne = list.contains("1");
        System.out.println(containsOne); // 输出：false
    }
}

该代码首先创建了一个包含字符串"seven"和"fourteen"的列表。然后使用`contains`方法判断列表中是否包含字符串"1"，并将结果打印出来。在这个例子中，列表不包含字符串"1"，所以输出结果为`false`。

相关问题

用java实现一个枚举类，通过编号(从1开始)得到30本世界名著(翻译成中文)

代码如下：

public enum WorldClassic {
    ONE("鲁滨逊漂流记"),
    TWO("简·爱"),
    THREE("傲慢与偏见"),
    FOUR("双城记"),
    FIVE("了不起的盖茨比"),
    SIX("哈利·波特与魔法石"),
    SEVEN("红楼梦"),
    EIGHT("儒林外史"),
    NINE("天龙八部"),
    TEN("西游记"),
    ELEVEN("三国演义"),
    TWELVE("水浒传"),
    THIRTEEN("红与黑"),
    FOURTEEN("高老庄"),
    FIFTEEN("巴黎圣母院"),
    SIXTEEN("罗密欧与朱丽叶"),
    SEVENTEEN("悲惨世界"),
    EIGHTEEN("安娜·卡列尼娜"),
    NINETEEN("百年孤独"),
    TWENTY("飘"),
    TWENTY_ONE("战争与和平"),
    TWENTY_TWO("源氏物语"),
    TWENTY_THREE("人间失格"),
    TWENTY_FOUR("麦田里的守望者"),
    TWENTY_FIVE("奥德赛"),
    TWENTY_SIX("苔丝"),
    TWENTY_SEVEN("莎士比亚全集"),
    TWENTY_EIGHT("教父"),
    TWENTY_NINE("纳尼亚传奇"),
    THIRTY("福尔摩斯探案集");

    private String bookName;

    WorldClassic(String bookName) {
        this.bookName = bookName;
    }

    public String getBookName() {
        return bookName;
    }

    public static String getBookNameByIndex(int index) {
        if (index > 0 && index <= 30) {
            return WorldClassic.values()[index - 1].getBookName();
        } else {
            return "";
        }
    }
}

使用方法：

String bookName = WorldClassic.getBookNameByIndex(1); //获取第一本世界名著的中文名
System.out.println(bookName); //输出：鲁滨逊漂流记

用java简单写下列代码设有3个数组内容如下： String x[]={"zero","one","two", "three",four", "five","six",seven","eight","nine"} ; String y[]={ten","eleven","twelve","thirteen","fourteen","fifteen", "sixteen","seventeen","eighteen","nineteen" }; String z[]={"twenty","thirty","fourty","fifty", "sixty","seventy", "eighty","ninety" }; 用Java命令行输入或在Eclipse中设置参数一个小于100的整数，将其翻成英文表示。 例如： 输入32，输出：thirty two 输入14，输出：fourteen 输入8， 输出：eight 反之，输入英文表示，输出相应的整数。

这是一个和前面问题一样的问题，我已经回答了。以下是用Java实现的代码，可以处理从数字到英文的转换和从英文到数字的转换。

import java.util.HashMap;

public class NumberConverter {
    private static final String[] ONES = {"", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
    private static final String[] TENS = {"", "", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"};
    private static final String[] TEENS = {"ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"};
    private static final HashMap<String, Integer> NUMBER_MAP = new HashMap<>();

    static {
        for (int i = 0; i < ONES.length; i++) {
            NUMBER_MAP.put(ONES[i], i);
        }
        for (int i = 2; i < TENS.length; i++) {
            NUMBER_MAP.put(TENS[i], i * 10);
        }
        for (int i = 0; i < TEENS.length; i++) {
            NUMBER_MAP.put(TEENS[i], i + 10);
        }
    }

    public static String convertToText(int number) {
        if (number < 0 || number >= 100) {
            throw new IllegalArgumentException("number must be between 0 and 99");
        }
        if (number < 10) {
            return ONES[number];
        } else if (number < 20) {
            return TEENS[number - 10];
        } else {
            int tens = number / 10;
            int ones = number % 10;
            return TENS[tens] + " " + ONES[ones];
        }
    }

    public static int convertToNumber(String text) {
        Integer number = NUMBER_MAP.get(text);
        if (number != null) {
            return number;
        }
        String[] parts = text.split(" ");
        if (parts.length == 2) {
            int tens = NUMBER_MAP.get(parts[0]);
            int ones = NUMBER_MAP.get(parts[1]);
            return tens + ones;
        } else {
            throw new IllegalArgumentException("invalid input: " + text);
        }
    }

    public static void main(String[] args) {
        if (args.length != 1) {
            System.out.println("Usage: java NumberConverter <number or text>");
            return;
        }
        String input = args[0];
        try {
            int number = Integer.parseInt(input);
            System.out.println(convertToText(number));
        } catch (NumberFormatException e) {
            System.out.println(convertToNumber(input));
        }
    }
}

在命令行输入一个小于100的整数，可以得到对应的英文表示。例如，输入32，输出为 "thirty two"。

如果输入的是英文表示，可以得到对应的整数。例如，输入 "fourteen"，输出为 14。