温度转换

package homeWork13;

import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;

public class TempertureConvert extends JFrame {// 温度转换，摄氏，华氏，开式
private static final long serialVersionUID = 1L;

private JLabel fromJLabel, enterJLabel, toJLabel, outJLabel;
private JRadioButton fahFromRadioButton, celFromRadioButton,
kelFromRadioButton, fahToRadioButton, celToRadioButton,
kelToRadioButton;
private ButtonGroup fromButtonGroup, toButtonGroup;
private JTextField inputField, outputField;
private JPanel converToJPanel,convertFromJPanel;
private int tempFrom,tempTo;

public TempertureConvert() {
super("Temperture Convert");

// 创建GUI
fromJLabel = new JLabel("Convert From:");
fahFromRadioButton=new JRadioButton("Fahrenheit");
celFromRadioButton=new JRadioButton("Celcius");
kelFromRadioButton=new JRadioButton("Kelvin");
fromButtonGroup=new ButtonGroup();//使用按钮组，使得一次只能选中一个按钮
fromButtonGroup.add(fahFromRadioButton);
fromButtonGroup.add(celFromRadioButton);
fromButtonGroup.add(kelFromRadioButton);

enterJLabel=new JLabel("Enter Numeric Temperature:");
inputField=new JTextField(10);

toJLabel=new JLabel("Convert to:");
fahToRadioButton=new JRadioButton("Fahrenheit");
celToRadioButton=new JRadioButton("Celcius");
kelToRadioButton=new JRadioButton("Kelvin");
toButtonGroup=new ButtonGroup();
toButtonGroup.add(fahToRadioButton);
toButtonGroup.add(celToRadioButton);
toButtonGroup.add(kelToRadioButton);

outJLabel=new JLabel("Comparable Temperature:");
outputField=new JTextField(10);
outputField.setEditable(false);

convertFromJPanel=new JPanel();
convertFromJPanel.setLayout(new GridLayout(1,3));//一行三列的表格
convertFromJPanel.add(fahFromRadioButton);
convertFromJPanel.add(celFromRadioButton);
convertFromJPanel.add(kelFromRadioButton);

converToJPanel=new JPanel();
converToJPanel.setLayout(new GridLayout(1,3));
converToJPanel.add(fahToRadioButton);
converToJPanel.add(celToRadioButton);
converToJPanel.add(kelToRadioButton);

Container container=getContentPane();
container.setLayout(new GridLayout(8,1));
container.add(fromJLabel);
container.add(convertFromJPanel);
container.add(enterJLabel);
container.add(inputField);
container.add(toJLabel);
container.add(converToJPanel);
container.add(outJLabel);
container.add(outputField);

inputField.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent event) {//按下回车，进行温度转换
// TODO Auto-generated method stub
tempFrom=Integer.parseInt(event.getActionCommand());

if(fahFromRadioButton.isSelected()&&fahToRadioButton.isSelected())
tempTo=tempFrom;
else if(fahFromRadioButton.isSelected()&&celToRadioButton.isSelected())
tempTo=(int)(5.0f/9.0f*(tempFrom-32));
else if(fahFromRadioButton.isSelected()&&kelToRadioButton.isSelected())
tempTo=(int)(5.0f/9.0f*(tempFrom-32))+273;

else if(celFromRadioButton.isSelected()&&fahToRadioButton.isSelected())
tempTo=(int)(9.0f/5.0f*tempFrom+32);
else if(celFromRadioButton.isSelected()&&celToRadioButton.isSelected())
tempTo=tempFrom;
else if(celFromRadioButton.isSelected()&&kelToRadioButton.isSelected())
tempTo=tempFrom+273;

else if(kelFromRadioButton.isSelected()&&fahToRadioButton.isSelected())
tempTo=(int)(9.0f/5.0f*(tempFrom+273)+32);
else if(kelFromRadioButton.isSelected()&&celToRadioButton.isSelected())
tempTo=tempFrom-273;
else if(kelFromRadioButton.isSelected()&&kelToRadioButton.isSelected())
tempTo=tempFrom;

outputField.setText(tempTo+"");
}
});

setSize(280, 225);
setVisible(true);
}

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
TempertureConvert application=new TempertureConvert();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

}