Week3 作业

public abstract class Component {
    private String name;
    public Component(String name) {
        this.name = name;
    }
    protected abstract void print();
    public String getName() {
        return name;
    }
    public void add(Component component) {
        throw new UnsupportedOperationException();
    }
    public void remove(Component component) {
        throw new UnsupportedOperationException();
    }
}

package camp.week3;
import java.util.ArrayList;
import java.util.List;
public abstract class Container extends Component {
    private List<Component> components = new ArrayList<>();
    public Container(String name) {
        super(name);
    }
    public void add(Component component) {
        components.add(component);
    }
    public void remove(Component component) {
        components.remove(component);
    }
    @Override
    protected void print() {
        System.out.println("print ".concat(this.getClass().getSimpleName()).concat("(").concat(getName()).concat(")"));
        for (Component component : components) {
            component.print();
        }
    }
}

public abstract class Widget extends Component {
    public Widget(String name) {
        super(name);
    }
    @Override
    protected void print() {
        System.out.println("print ".concat(this.getClass().getSimpleName()).concat("(").concat(getName()).concat(")"));
    }
}

package camp.week3;
public class WinForm extends Container {
    public WinForm(String name) {
        super(name);
    }
}

package camp.week3;
public class Picture extends Widget{
    public Picture(String name) {
        super(name);
    }
}

package camp.week3;
public class Client {
    public static void main(String[] args) {
        Component winForm = new WinForm("Window窗口");
        Picture pic = new Picture("LOGO图片");
        winForm.add(pic);
        winForm.add(new Button("登录"));
        winForm.add(new Button("注册"));
        Frame frame = new Frame("FRAME1");
        frame.add(new Label("用户名"));
        frame.add(new TextBox("文本框"));
        frame.add(new Label("密码"));
        frame.add(new PasswordBox("密码框"));
        frame.add(new CheckBox("复选框"));
        frame.add(new TextBox("记住用户名"));
        frame.add(new LinkLabel("忘记密码"));
        winForm.add(frame);
        winForm.print();
    }
}