java中使用多个数组的构造函数

Question

在创建接受多个字符串一维数组的构造函数时遇到困难：

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"});

}

}

我一直得到多个错误--标记的语法错误，错位的构造--类型不匹配：无法从字符串[]转换为关系--标记“}”的语法错误，删除此标记--标记“）”的语法错误，}预期

我需要能够单独使用每个数组与关系类。

Answer 1

在Java中不能这样使用数组文字--必须显式地初始化它们。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"});