framedemo.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter14;
import javax.swing.*;
import java.awt.*;
public class FrameDemo extends JFrame
{
	public FrameDemo()
	{
		//调用父类带参构造方法设置窗口标题
		super("该Frame由继承得到");
		//setTitle("继承JFrame类得到Frame对象");
		setSize(250,150);
		setVisible(true);
		setLocation(100,100);
		setDefaultCloseOperation(EXIT_ON_CLOSE);	
	}
	public static void main(String args[])	
	{
		new FrameDemo();
	}
}