d圖片是需求，Drink 的類怎么建立啊，求大神幫我public class Material { private String name; private int pirce; public Material() { } public Material(String name, int pirce) { super(); this.name = name; this.pirce = pirce; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getPirce() { return pirce; } public void setPirce(int pirce) { this.pirce = pirce; } public void add(){ System.out.println(); }}public?class?MinorMaterial?extends?Material?{
public?MinorMaterial()?{
}
public?MinorMaterial(String?name,?int?pirce)?{
super(name,?pirce);
}
}
public?class?MainMaterial?extends?Material?{
public?MainMaterial()?{
}
public?MainMaterial(String?name,?int?pirce)?{
super(name,?pirce);
}
}
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