77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
/**
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interfaces demo1.go
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BSD 3-Clause License
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Copyright (c) 2024 Mass Collaboration Labs and contributors
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**/
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package interfaces
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import (
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"fmt"
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"math"
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)
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type shape interface{
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area() float64
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}
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type rectangle struct{
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rectangle_width, rectangle_height float64
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}
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type circle struct{
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radius float64
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}
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func (r rectangle) area() float64{
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return r.rectangle_height * r.rectangle_width
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}
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func (c circle) area() float64 {
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return math.Pi * c.radius * c.radius
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}
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func school(s shape) {
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fmt.Println("Area : ", s.area())
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}
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func Demo1() {
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r:= rectangle{
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rectangle_width: 10, rectangle_height: 6,
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}
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school(r)
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c:= circle{radius: 10}
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school(c)
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}
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