Coordinate.java

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package aud.graph.matrix;
 
public class Coordinate implements Comparable<Coordinate> {
 
  public int i;
  public int j;
 
  public Coordinate(int i,int j) {
    this.i=i;
    this.j=j;
  }
 
  @Override public int compareTo(Coordinate other) {
    int rv=j-other.j;
    return rv!=0 ? rv : (i-other.i);
  }
  @Override public boolean equals(Object other) {
    Coordinate coord=(Coordinate) other;
    return i==coord.i && j==coord.j;
  }
 
  @Override public String toString() {
    return "("+i+","+j+")";
  }
}