java 界面编程（上）

package com.lost.frame;

import java.awt.Color;
import java.awt.Frame;

public class FrameDemo {
	
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
	
		Frame f1 = new MyFrame(100,100,400,400,Color.BLUE);       
		Frame f2 = new MyFrame(300,100,400,400,Color.YELLOW);
		Frame f3 = new MyFrame(100,300,400,400,Color.GREEN);     
		Frame f4 = new MyFrame(300,300,400,400,Color.MAGENTA);
	}

}

class MyFrame extends Frame
{
	static int  id = 0;
	public MyFrame(int x,int y,int width,int height,Color color) {
		// TODO Auto-generated constructor stub
		super("MyFrame"+(++id));
		setBackground(color);
		setBounds(x, y, width, height);
		setLayout(null);
		setVisible(true);
	}

}

	

package com.lost.pannel;

import java.awt.Color;
import java.awt.Frame;
import java.awt.Panel;

import javax.lang.model.type.NullType;

public class PannelDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Frame f = new Frame("Java Frame with Pannel");
		Panel p = new Panel();
		f.setLayout(null);
		f.setBounds(300, 300, 500, 500);
	    f.setBackground(new Color(0,0,102));//设置背景颜色时使用三基色(红，绿，蓝)的比例来调配背景色
	    p.setBounds(50,50,400,400);//这里设置的坐标(50,50)是相对于Frame窗体的
	    p.setBackground(new Color(204,204,255));
	    f.add(p);//把Panel容器装入到Frame容器中，使其能在Frame窗口中显示出来
	    f.setVisible(true);
	}

}

package com.lost.FlowLayout;

import java.awt.Button;
import java.awt.FlowLayout;
import java.awt.Frame;

public class FlowLayoutDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Frame f  = new Frame("FlowLayout");
		
		Button btn1 = new Button("btn1");
		Button btn2 = new Button("btn2");
		Button btn3 = new Button("btn3");
		
		f.setLayout(new FlowLayout());
		f.add(btn1);
		f.add(btn2);
		f.add(btn3);
		f.setVisible(true);
		
		f.setSize(500, 500);

	}

}

package com.lost.Border;

import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;

public class BorderLayoutDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Frame f = new Frame("BorderLayout");
		Button btn1 = new Button("east");
		Button btn2 = new Button("west");
		Button btn3 = new Button("north");
		Button btn4 = new Button("south");
		Button btn5 = new Button("center");

		f.setLayout(new BorderLayout());
		
		f.add(btn1,BorderLayout.EAST);
		f.add(btn2,BorderLayout.WEST);
		f.add(btn3,BorderLayout.NORTH);
		f.add(btn4,BorderLayout.SOUTH);
		f.add(btn5,BorderLayout.CENTER);
		
		f.setVisible(true);
		f.setSize(500, 500);
	}

}

package com.lost.Grid;

import java.awt.Button;
import java.awt.Frame;
import java.awt.GridLayout;

public class GridLayoutDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Frame f = new Frame("GridLayout");
		f.setLayout(new GridLayout(2,3));
		 Button btn1 = new Button("btn1");
		 Button btn2 = new Button("btn2");
		 Button btn3 = new Button("btn3");
		 Button btn4 = new Button("btn4");
		 Button btn5 = new Button("btn5");
		 Button btn6 = new Button("bnt6");
		 
		 f.add(btn1);
		 f.add(btn2);
		 f.add(btn3);
		 f.add(btn4);
		 f.add(btn5);
		 f.add(btn6);
		 /*
		  * Causes this Window to be sized to fit the preferred size and layouts of its subcomponents.
		  *  The resulting width and height of the window are automatically enlarged if either of dimensions
		  *   is less than the minimum size as specified by the previous call to the setMinimumSize method. 
		     If the window and/or its owner are not displayable yet, both of them are made displayable before 
		    calculating the preferred size. The Window is validated after its size is being calculated.
    	 	设置到适应尺寸
    	  * */
		 f.pack();
		 
		 f.setVisible(true);

	}

}

package com.lost.layout;

import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Panel;

public class LayoutCombineDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Frame f  = new Frame("Layout 嵌套使用");
		f.setLayout(new GridLayout(2, 1));
		f.setVisible(true);
		f.setLocation(300, 400);
		f.setSize(500, 500);
		f.setBackground(new Color(204,204,255));
		
		Panel p1 = new Panel(new BorderLayout());
		Panel p2 = new Panel(new GridLayout(2,1));
		Panel p3 = new Panel(new BorderLayout());
		Panel p4 = new Panel(new GridLayout(2,2));
		
		p1.add(new Button("East(p1-东)"),BorderLayout.EAST);
		p1.add(new Button("West(p1-西)"),BorderLayout.WEST);
		p2.add(new Button("p2-Button1"));
		p2.add(new Button("p2-Button2"));
		p1.add(p2,BorderLayout.CENTER);//把p2作为元素加入到p1里面
		
		p3.add(new Button("East(p3-东)"),BorderLayout.EAST);
		p3.add(new Button("West(p3-西)"),BorderLayout.WEST);
		
		  for(int i=0;i<4;i++){
           p4.add(new Button("p4-Button"+i));
		  }
		  p3.add(p4,BorderLayout.CENTER);
		  
		  f.add(p1);
		  f.add(p3);
	}

}