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如何爲主類構建UML圖?我不知道哪個屬性和操作。我不知道哪個屬性和操作是公共或私人的。這是代碼:主類UML圖
public class Assignment {
public static void main(String[] args) {
double pi = 3.14159;
int radius;
Area Ar1 = new Area();
Scanner scanner = new Scanner(System.in);
System.out.println("Choose which shape you want to calculate; \n1 Parallelogram \n2 Circle");
Ar1.setShape(scanner.nextInt());
switch (Ar1.getShape()){
case 1:
System.out.println("Insert length");
Ar1.setLength(scanner.nextInt());
System.out.println("Insert width");
Ar1.setWidth(scanner.nextInt());
System.out.println("Area: " + Ar1.getLength() * Ar1.getWidth());
break;
case 2:
System.out.println("Insert radius");
radius = scanner.nextInt();
System.out.println("Area: " + pi * (radius * radius));
break;
default:
System.out.println("ERROR: Please choose something else");
}
}
}
它沒有任何操作。它沒有屬性。這不是一堂課。你不需要畫任何東西。 –
除了UML類圖,您可能想要在[UML序列圖](http://www.uml-diagrams.org/sequence-diagrams.html)中將主類顯示爲actor(生命線) – xmojmr