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

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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