java记录一个子串在整串中出现的次数

这个问题建议使用正确的中文字符来提问，什么是“\xe8\xae\xb0\xe5\xbd\x95”和“\xe6\x95\xb4\xe4\xb8\xb2”？如果是“记 录”和“整 串”，那么答案为：这个子串在整串中出现的次数。

相关问题

Java完成记录一个子串在整串中出现的次数

你可以使用Java中的String类的indexOf()方法来查找子串在整串中的位置，然后使用循环来计算出现次数。以下是示例代码：

public class SubstringCount {
    public static int countSubstring(String str, String subStr) {
        int count = 0;
        int index = str.indexOf(subStr);
        while (index != -1) {
            count++;
            index = str.indexOf(subStr, index + 1);
        }
        return count;
    }

    public static void main(String[] args) {
        String str = "Java is a programming language. Java is used for web development, mobile apps, and more.";
        String subStr = "Java";
        int count = countSubstring(str, subStr);
        System.out.println("The substring \"" + subStr + "\" appears " + count + " times in the string.");
    }
}

输出结果：

The substring "Java" appears 2 times in the string.

Java完成记录一个子串在整串中出现的次数代码的编写

你可以使用Java中的String类的indexOf()方法来查找子串在整串中的位置，然后使用循环来计算出现次数。以下是示例代码：

public class SubstringCount {
    public static int countSubstring(String str, String subStr) {
        int count = 0;
        int index = str.indexOf(subStr);
        while (index != -1) {
            count++;
            index = str.indexOf(subStr, index + 1);
        }
        return count;
    }

    public static void main(String[] args) {
        String str = "Java is a programming language. Java is used for web development, mobile apps, and more.";
        String subStr = "Java";
        int count = countSubstring(str, subStr);
        System.out.println("The substring \"" + subStr + "\" appears " + count + " times in the string.");
    }
}

输出结果：

The substring "Java" appears 2 times in the string.