Tests two polygons for equality. If both are null this method returns true.

    

import java.awt.Polygon;
import java.util.Arrays;

public class Main {
  /**
   * Tests two polygons for equality.  If both are <code>null</code> this
   * method returns <code>true</code>.
   *
   * @param p1  polygon 1 (<code>null</code> permitted).
   * @param p2  polygon 2 (<code>null</code> permitted).
   *
   * @return A boolean.
   */
  public static boolean equal(final Polygon p1, final Polygon p2) {
      if (p1 == null) {
          return (p2 == null);
      }
      if (p2 == null) {
          return false;
      }
      if (p1.npoints != p2.npoints) {
          return false;
      }
      if (!Arrays.equals(p1.xpoints, p2.xpoints)) {
          return false;
      }
      if (!Arrays.equals(p1.ypoints, p2.ypoints)) {
          return false;
      }
      return true;
  }

}

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Tests two polygons for equality. If both are null this method returns true. : Shape « 2D Graphics GUI « Java

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