我想將一系列字符轉換為一個字符串並與另一個字符串進行比較

Question

樣本輸入 1：

Enter the first letter:R
Enter the second letter:A
Enter the third letter:I
Enter the fourth letter:N
Enter the fifth letter:B
Enter the sixth letter:O
Enter the seventh letter:W

示例輸出 1：

RAINBOW

樣本輸入 2：

Enter the first letter:R
Enter the second letter:E
Enter the third letter:I
Enter the fourth letter:N
Enter the fifth letter:B
Enter the sixth letter:O
Enter the seventh letter:W

示例輸出 2：

The spelling is wrong

代碼：

public class spellcheck {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        String str1;
        String str2 = "rainbow";
        int i = 0;
        String a[] = new String[7];
        System.out.print("Enter the first letter:");
        a[0] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[1] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[2] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[3] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[4] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[5] = scan.nextLine();
        System.out.print("Enter the first letter:");
        a[6] = scan.nextLine();
    }
}

下一步應該怎么做？

Answer 1

String tmp = "";

for(int j = 0; j < a.length; j ++)
tmp += a[j];

System.out.println(tmp);

輸出 -

Enter the first letter:r
Enter the first letter:a
Enter the first letter:i
Enter the first letter:n
Enter the first letter:b
Enter the first letter:o
Enter the first letter:w
rainbow

為了進行比較，您可以使用內置的 String 函數 .equals -> tmp.equals("Otherstring")

Answer 2

1. 使用char數組而不是String數組來存儲字母。
2. 從char數組中創建一個String ，然后比較內容。
3. 使用equalsIgnoreCase而不是equals以不區分大小寫的方式比較拼寫。
4. 此外，始終遵循Java 命名約定，例如，您的類的名稱應按照命名約定使用SpellCheck 。

請按以下步驟操作：

import java.util.Scanner;

public class SpellCheck {
    public static void main(String[] args) {
        String[] suffix = { "st", "nd", "rd", "th", "th", "th", "th", "th", "th", "th" };
        Scanner scan = new Scanner(System.in);
        String str;
        String str2 = "rainbow";
        char a[] = new char[str2.length()];
        for (int i = 0; i < a.length; i++) {
            do {
                System.out.print(
                        "Enter the " + ((i + 1) + suffix[i % 100 > 9 && i % 100 < 13 ? 3 : i % 10]) + " letter: ");
                str = scan.nextLine();
                if (str.length() == 1) {
                    a[i] = str.charAt(0);
                }
            } while (str.length() != 1);
        }
        String str1 = new String(a);
        if (str1.equalsIgnoreCase(str2)) {
            System.out.println(str2.toUpperCase());
        } else {
            System.out.println("The spelling is wrong");
        }
    }
}

示例運行：

Enter the 1st letter: R
Enter the 2nd letter: A
Enter the 3rd letter: I
Enter the 4th letter: N
Enter the 5th letter: B
Enter the 6th letter: O
Enter the 7th letter: W
RAINBOW

另一個示例運行：

Enter the 1st letter: R
Enter the 2nd letter: E
Enter the 3rd letter: I
Enter the 4th letter: N
Enter the 5th letter: B
Enter the 6th letter: O
Enter the 7th letter: W
The spelling is wrong

Answer 3

for (int i = 0; i < a.length; i++) {
    str1 = str1 + a[i];
}

然后通過 str2.equals(str1) 進行比較