exam.zip

package exam; public class BClass { public static void main(String[] args) { // TODO Auto-generated method stub MLabel label=new MLabel(100,100,300,200,"模拟考试"); MButton button =new MButton(200,200,100,50,"OK"); MMouseEvent event = new MMouseEvent(220,220); label.draw(); button.draw(); button.mouseClicked(event); } } class MComponent{ private int x; private int y; private int width; private int height; public MComponent(int x, int y, int width, int height) { super(); this.x = x; this.y = y; this.width = width; this.height = height; } public void draw() { System.out.print("该控件的x坐标是"+x+",y坐标是"+y+",宽度是"+width+",高度是"+height); } } class MLabel extends MComponent { private String caption; public MLabel(int x, int y, int width, int height,String caption) { super(x, y, width, height); this.caption=caption; } @Override public void draw() { // TODO Auto-generated method stub super.draw(); System.out.println(",标签是"+caption); } } class MMouseEvent{ private int x; private int y; public MMouseEvent(int x, int y) { super(); this.x = x; this.y = y; } @Override public String toString() { return "鼠标坐标为(x=" + x + ", y=" + y + ")"; } } interface MClickable{ void mouseClicked(MMouseEvent event); } class MButton extends MComponent implements MClickable{ private String title; public MButton(int x, int y, int width, int height,String title) { super(x, y, width, height); // TODO Auto-generated constructor stub this.title=title; } @Override public void mouseClicked(MMouseEvent event) { // TODO Auto-generated method stub System.out.println("按钮["+title+"]被单击"+"，"+event.toString()); } @Override public void draw() { // TODO Auto-generated method stub super.draw(); System.out.println(",文本是"+title); } }