Question

我需要打印一个二维数组，其字符串值如表。

到目前为止，我的代码是：

prefix testOnt: <http://www.example.org/test-ontology#>

SELECT ?person ?address 
WHERE {
  ?person testOnt:hasAddress ?address
  SERVICE <http://fuseki/location> {
     ?address ?p ?o     # use a more specific BGP here if necessary
  }
}

输出结果为：

import java.util.Arrays;

public class Employee {
    public static void main(String[] args) {
        String wages[][] =
            {
                {"Emp", "Hours", "Wages"},
                {"Bobby", "45", "35"},
                {"Rick", "15",  "33"},
                {"Mike", "66", "50"},
                {"Jayme", "15", "45"}
         };         

       System.out.print(Arrays.deepToString(wages));
       System.out.println();
    }
}

我需要它看起来更像一个包含单独行（5行3列）的表

Answer 1

您必须迭代数组并打印所有条目。

String wages[][] = {
    {"Emp", "Hours", "Wages"},
    {"Bobby", "45", "35"},
    {"Rick", "15",  "33"},
    {"Mike", "66", "50"},
    {"Jayme", "15", "45"}
};

Arrays.stream(wages).map(Arrays::toString).forEach(System.out::println);

输出

[Emp, Hours, Wages]
[Bobby, 45, 35]
[Rick, 15, 33]
[Mike, 66, 50]
[Jayme, 15, 45]

Try it online !

Answer 2

一个非常简单的解决方案是这样的：

for (int i = 0; i < wages.length; i++) {
    for (int j = 0; j < wages[i].length; j++) {
        System.out.print(wages[i][j]);
    }
    System.out.println();
}

如果字符串的长度导致显示问题，那么您可以执行以下操作：

import java.util.Arrays;

public class Employee {

    public int[] getMaxLength(String wages[][]) {
        int lengths[] = new int[wages[0].length];
        for (int i = 0; i < lengths.length; i++) lengths[i] = 0;
        for (int i = 0; i < wages.length; i++) {
            for (int j = 0; j < wages[i].length; j++) {
                if (wages[i][j].length() > lengths[j]) lengths[j] = wages[i][j].length();
            }
        }
        return lengths;
    }

    public static String friendlyString(String input, int size) {
        while (input.length() < size) input += " ";
        return input;
    }

    public static void main(String[] args) {
        String wages[][] =
            {
                {"Emp", "Hours", "Wages"},
                {"Bobby", "45", "35"},
                {"Rick", "15",  "33"},
                {"Mike", "66", "50"},
                {"Jayme", "15", "45"}
         };         

        int sizes[] = getMaxLength(wages);
        for (int i = 0; i < wages.length; i++) {
            for (int j = 0; j < wages[i].length; j++) {
                System.out.print(friendlyString(wages[i][j], sizes[j]));
            }
            System.out.println();
        }
    }
}

我需要像桌子一样打印我的数组

2 个答案: