英文:
Adjacency matrix generator
问题
目标是创建一个邻接矩阵生成器（元素的唯一值是0或1；必须对称，即元素在[i][j] == [j][i]）的 Java 代码。
我有一些代码，但结果是一个nx5矩阵（如果我设定 n = 13，得到的矩阵是一个13x5矩阵）。它是对称的，元素的值介于0-1之间，所以这不是问题。另一个问题是我不太清楚如何使用非double类型的数组，这更多是一个美观问题 + 理想情况下，对角线应填充为“ -”而不是零，就像现在一样。
Random random = new Random();
double[][] array = new double[n][n];
for (int i = 0; i < array.length; i++)
{
for (int j = 0; j <= i; j++)
{
int x = random.nextInt(2);
array[i][j] = x;
if (i != j)
{
array[j][i] = x;
}
}
}
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
if (i == j || (i + j + 1) == n)
{
array[i][j] = 0;
}
}
}
for (double[] a : array)
{
System.out.println(Arrays.toString(a));
}
英文:
My goal is to create an adjacency matrix generator (the only value elements can have is 0 or 1; it has to be symmetric, meaning element in [i][j] == element [j][i]) in Java.
I have some code, but the result is an nx5 matrix (if I establish n = 13, the resulting matrix is a 13x5 matrix). It is symmetric and the values of elements is bounded between 0-1, so that is not an issue. Another problem is I don't really know how to have an array without doubles, which is more of an aesthetical problem + ideally, the diagonal would be filled with "-" instead of zeroes, as it is now.
Random random = new Random();
double[][] array = new double[n][n];
for (int i = 0; i < array.length; i++)
{
for (int j = 0; j <= i; j++)
{
int x = random.nextInt(2);
array[i][j] = x;
if (i != j)
{
array[j][i] = x;
}
}
}
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
if (i == j || (i + j + 1) == n)
{
array[i][j] = 0;
}
}
}
for (double[] a : array)
{
System.out.println(Arrays.toString(a));
}
}
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