Table like java data structure

Question

I need to implement some kind table-like data structure that stores info like this in Java:

+--------+-------+-----+
|  sij   |   i   |  j  |
+--------+-----         


        

Answer 1

If I understand your question right, all you need is a Comparable class to represent a row.

public static class Row
implements Comparable {
  public Row(int sij, int i, int j) {
    this.sij = sij;
    this.i = i;
    this.j = j;
  }

  public int compareTo(Row other) {
    return Integer.valueOf(sij).compareTo(other.sij);
  }

  public final int sij;
  public final int i;
  public final int j;
}

You can then populate a List with instances of Row and use Collections.sort to sort it.