java速度入门_六swing组建的应用

1.一些基本组件的应用

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Insets;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

public class frame {

public static void main(String[] args)

{

JFrame frame=new JFrame("I'm a JFrame~");

frame.getContentPane().setLayout(null);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(800,600);

Dimension displaySize=Toolkit.getDefaultToolkit().getScreenSize();

frame.setLocation((displaySize.width-frame.getSize().width)/2,(displaySize.height-frame.getSize().height)/2);

//jlabel

JLabel label=new JLabel("Hello,java~",JLabel.CENTER);

label.setVerticalTextPosition(JLabel.BOTTOM);

label.setHorizontalTextPosition(JLabel.CENTER);

label.setBounds(200,10,100,300);

ImageIcon ico = new ImageIcon("src/pic/1.png");

//Jicon ico=new

label.setIcon(ico);

frame.add(label);

//jbutton

JButton button=new JButton(new ImageIcon("src/pic/2.png"));

button.setRolloverIcon(new ImageIcon("src/pic/3.png"));

button.setPressedIcon(new ImageIcon("src/pic/4.png"));

button.setBounds(10,10,150,150);

button.setMargin(new Insets(10,10,10,10));

button.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent e)

{

System.out.println("ActionEvent~");

}

});

button.addChangeListener(new ChangeListener()

{

public void stateChanged(ChangeEvent e)

{

System.out.println("ChangeEvent~");

}

});

frame.add(button);

//button.setPreferredSize(11,22);

//jradiobutton

JRadioButton manRadioButton = new JRadioButton("xx",true);

JRadioButton womanRadioButton = new JRadioButton("xy",false);

ButtonGroup sexRadioButtonGroup=new ButtonGroup();

sexRadioButtonGroup.add(manRadioButton);

sexRadioButtonGroup.add(womanRadioButton);

manRadioButton.setBounds(300,10,50,50);

womanRadioButton.setBounds(350,10,50,50);

frame.add(manRadioButton);

frame.add(womanRadioButton);

//jlist

String[] weekends={"Monday","Tusday","Wednesday","Thursday","Friday","Saturday","Sunday"};

JList weekList=new JList(weekends);

weekList.setFixedCellHeight(20);

weekList.setFixedCellWidth(5);

weekList.setSelectionBackground(Color.blue);

weekList.setSelectionForeground(Color.gray);

//weekList.setBounds(400,10,110,110);

JScrollPane scroll=new JScrollPane(weekList);

int Height=(int)weekList.getPreferredScrollableViewportSize().getHeight();

scroll.setBounds(400,10,110,80);

frame.add(scroll);

; frame.getRootPane().setDefaultButton(button);

frame.setVisible(true);

}

}

2.布局组件

import java.awt.BorderLayout;

import java.awt.Container;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.WindowConstants;

public class borderLayout extends JFrame{

private JButton upButton;

private JButton downButton;

private JButton leftButton;

private JButton rightButton;

private JButton centerButton;

public borderLayout()

{

setTitle("BorderLayout~");

this.setBounds(100,100,300,400);

upButton=new JButton("up");

downButton=new JButton("down");

leftButton=new JButton("left");

rightButton=new JButton("right");

centerButton=new JButton("center");

Container panel=this.getContentPane();

panel.setLayout(new BorderLayout());

panel.add(upButton,BorderLayout.NORTH);

panel.add(downButton,BorderLayout.SOUTH);

panel.add(leftButton,BorderLayout.WEST);

panel.add(rightButton,BorderLayout.EAST);

panel.add(centerButton,BorderLayout.CENTER);

this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

}

public static void main(String args[])

{

borderLayout demo=new borderLayout();

demo.setVisible(true);

System.out.println("Hello,java!");

}

}

如图：