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for (Shape shape : shapes) {
shape.shapeInfo();
System.out.println("\tarea = " + shape.getArea());

if (shape instanceof IPerimeter) {
System.out.println("\tperimeter = " + ((IPerimeter)
shape).getPerimeter());
}
if (shape instanceof IVolume) {
System.out.println("\tvolume = " + ((IVolume) shape).getVolume());
}
if (shape instanceof IVertex) {
System.out.println("\tnumber of vertex = " + ((IVertex)
shape).getNumberOfVertex());
}
}
}
}

Результат виконання

This is a shape 'Square':
color: red, border style: dotted
side = 7.24
area = 52.4176
perimeter = 28.96
number of vertex = 4
This is a shape 'Circle':
color: green, border style: solid
radius = 5.81
area = 105.994154
perimeter = 36.4868
This is a shape 'Cube':
color: yellow, border style: dashed
side = 6.75
area = 273.375
perimeter = 81.0
volume = 307.546875
number of vertex = 8
This is a shape 'Sphere':
color: blue, border style: solid
radius = 6.39
area = 512.8511759999999
volume = 1092.3730048799998

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