java - 使用 contains 查找二维数组中的元素

Question

我有一个二维数组，想要使用 contains 方法来检查 myChar 是否是 myArray[i][0] 的一部分

public static final String[][] myArray = {
        {"NM1", "DESC1"},
        {"NM2", "DESC2"},
        {"NM3", "DESC3"},
        {"NM4", "DESC4"},
        {"NM5", "DESC5"}
    }

Arrays.asList(myArray).contains(mychar);

但是这对我来说失败了。当我将其设置为一维数组时，例如:

public static final String[][] myArrayNm = {
    "NM1",
    "NM2",
    "NM3",
    "NM4",
    "NM5"
}

Arrays.asList(myArrayNm).contains(mychar);

正在为我工​​作。有没有办法可以使用二维数组进行值检查(循环将是最后一个选项)

Answer 1

试试这个:

public static final String[][] myArray = {
        {"NM1", "DESC1"},
        {"NM2", "DESC2"},
        {"NM3", "DESC3"},
        {"NM4", "DESC4"},
        {"NM5", "DESC5"}
    }

List<String[]> list = Arrays.asList(myArray);
for(String[] arr: list){
    System.out.println(Arrays.asList(arr).contains("myString"));
}

虽然性能不高，但确实有效:)