获取你所拥有的宝石的数量

` import java.util.Scanner;

public class 宝石 { public static void main(String[] args) { m1(); }

public static void m1() {
    //你想知道你拥有的石头中有多少是宝石。
    Scanner scanner = new Scanner(System.in);
    System.out.println("输入宝石的类型");
    String bs = scanner.next();
    System.out.println("输入你所拥有的宝石");
    String ihava = scanner.next();

    char[] arr1 = bs.toCharArray();//转成char数组
    char[] arr2 = ihava.toCharArray();//转成char数组
    int c = 0;//定义接收值
    for (int i = 0; i < arr1.length; i++) {//遍历arr1
        char a = arr1[i];
        for (int j = 0; j < arr2.length; j++) {//遍历arr2
            char b = arr2[j];
            if (a == b) {
                c++;
            }
        }
    }
    System.out.println(c);
}`