我用eclipse新建一個類,名為OblongTester,下面是代碼,我是自學菜鳥,大家幫看一下,謝謝

public class Oblong{

private double length;

private double height;

public Oblong(double lengthIn, double heightIn)

{

length = lengthIn;

height = heightIn;

}

public double getLength()

{

return length;

}

public double getHeight()

{

return height;

}

public void setLength(double lengthIn)

{

length = lengthIn;

}

public void setHeight(double heightIn)

{

height = heightIn;

}

public double calculateArea()

{

return length * height;

}

public double calculatePerimeter()

{

return 2 * (length + height);

}

}

import java.util.*;

public class OblongTester{

public??static void main(String[] args)

{

Scanner sc = new Scanner (System.in);

double oblongLength, oblongHeight;

Oblong myOblong;

System.out.print("Please enter the length of your oblong:");

oblongLength = sc.nextDouble();

System.out.print("Please enter the height of your oblong:");

oblongHeight = sc.nextDouble();

myOblong = new Oblong(oblongLength, oblongHeight);

System.out.println("Oblong length is " + myOblong.getLength());

System.out.println("Oblong height is " + myOblong.getHeight());

System.out.println("Oblong area is " + myOblong.calculateArea());

System.out.println("Oblong perimeter is " + myOblong.calculatePerimeter());

}

}

總結

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