java - 构造函数在java中使用多个数组

Question

在创建采用多个 String 的一维数组的构造函数时遇到问题:

class relation {

String[] setA, setB, setC;

relation (String[] setA, String[] setB, String[] setC) {
    this.setA = setA;
    this.setB = setB;
    this.setC = setC;
} 
}

public class matrix {

public static void main(String[] args) {

    relation relation1 = new relation({"1","2","3","4","5"}, {"1","2","3","4"}, {"2","3","4","5"});
    relation relation2 = new relation({"a","b","c","d"}, {"a","b","c","d","b","c"}, {"a","b","c","d","c","b"});

}

}

我不断收到多个错误 - 标记语法错误，错误放置的结构 - 类型不匹配:无法从 String[] 转换为 关系 - 标记“}”的语法错误，删除该标记 - 标记“)”的语法错误，} 预期

我需要能够通过关系类单独使用每个数组。

Answer 1

您不能在 Java 中以这种方式使用数组文字 - 您必须显式初始化它们。例如:

relation relation1 = new relation(new String[]{"1","2","3","4","5"}, 
                                  new String[]{"1","2","3","4"},
                                  new String[]{"2","3","4","5"});