一半不是自己编写的,搞了1个多小时,结果编译还是出错了,请指教

[xianngqian]

下面是我抄写的一个摄氏&华氏换算器代码,请看:
代码如下: (附代码)
/**
* @(#)DemoFlowLayout.java
*
*
* @author
* @version 1.00 2008/3/5
*/
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class DemoFlowLayout extends JFrame {
public static void main(String[] args){
JFrame theFrame = new DemoFlowLayout();
theFrame.setSize(200,125);
theFrame.setVisible(true);
}
//Model class
public class Thermometer{
private double degreesCelsius;
public void setCelsius(double degrees){
degreesCelsius = degrees;
}
public void setFahrenheit(double degrees){
degreesCelsius = (degrees-32.0)*5.0/9.0;

}
public double getCelsius(){
return degreesCelsius;
}
public double getFahrenheit(){
return getCelsius()*9.0/5.0+32.0;

}
}
private Thermometer thermo = new Thermometer();
//////View
//Create controls
private JLabel lbFahrenhebit = new JLabel("Fahrenheit");
private JTextField tfFahrenhebit = new JTextField ("212",6);
private JLabel lbCelsius = new JLabel("Celsius");
private JTextField tfCelsius = new JTextField("100",6);
private JButton btFtoC = new JButton("F to c");
private JButton btCtoF = new JButton("C to F");

public DemoFlowLayout() {
//Set title
setTitle("FlowLayout Demo");
//Create container and layout
Container contentPane = getContentPane();
FlowLayout layout = new FlowLayout();
contentPane.setLayout (layout);

//Add control to container
contentPane.add (lbFahrenhebit);
contentPane.add (tfFahrenhebit);
contentPane.add (lbCelsius);
contentPane.add (tfCelsius);
contentPane.add (btFtoC);
contentPane.add (btCtoF);

//Specify listeners
btFtoC.addActionListener(new FtoCListener());
btCtoF.addActionListener(new CtoFListener());
addWindowListener(new MyWindowAdapter());
}
//////////////////////Controller
//Fahrenbeit button listener
private class FtoCListener implements ActionListener{
public void actionPerformed (ActionEvent event){
String inStr = tfFahrenhebit.getText().trim();
double f = Double.parseDouble(inStr);
thermo.setFahrenheit(f);
String outStr=
Format.justify ('1',thermo.getCelsius(),0,2);
tfCelsius.setText (outStr);
}
}

//Celsius button listener
private class CtoFListener implements ActionListener{
public void actionPerformed (ActionEvent event){
String inStr = tfCelsius.getText().trim();
double c =Double.parseDouble(inStr);
thermo.setCelsius(c);
String outStr
=Format.justify ('1',thermo.getFahrenheit(),0,2);
tfFahrenheit.setText (outStr);
}
}

//Window listener
private class MyWindowAdapter extends WindowAdapter{
public void WindowClosing (WindowEvent e){
System.exit(0);
}
}
}

[ochinchina]

到http://faculty.cs.wwu.edu/martin/Software%20Packages/BreezyGUI/Default.htm下载BreezyGUI.jar，并import BreezyGUI.Format，修改89行的错误就可以了。修改后的代码：

/**
 * @(#)DemoFlowLayout.java
 *
 *
 * @author 
 * @version 1.00 2008/3/5
 */
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import BreezyGUI.Format;

public class DemoFlowLayout extends JFrame {
	public static void main(String[] args){
		JFrame theFrame = new DemoFlowLayout();
		theFrame.setSize(200,125);
		theFrame.setVisible(true);
	}
	//Model class
	public class Thermometer{
		private double degreesCelsius;
		public void setCelsius(double degrees){
			degreesCelsius = degrees;
		}
		public void setFahrenheit(double degrees){
			degreesCelsius = (degrees-32.0)*5.0/9.0;
			
		}
		public double getCelsius(){
			return degreesCelsius;
		}
		public double getFahrenheit(){
			return getCelsius()*9.0/5.0+32.0;
			
		}
	}
	private Thermometer thermo = new Thermometer();
	//////View
	//Create controls
	private JLabel     lbFahrenhebit = new JLabel("Fahrenheit");
	private JTextField tfFahrenhebit = new JTextField ("212",6);
	private JLabel     lbCelsius     = new JLabel("Celsius");
	private JTextField tfCelsius     = new JTextField("100",6);
	private JButton    btFtoC        = new JButton("F to c");
	private JButton    btCtoF        = new JButton("C to F");
	
    public DemoFlowLayout() {
    	//Set title
    	setTitle("FlowLayout Demo");
    	//Create container and layout
    	Container contentPane = getContentPane();
    	FlowLayout layout = new FlowLayout();
    	contentPane.setLayout (layout);
    	
    	//Add control to container
    	contentPane.add (lbFahrenhebit);
    	contentPane.add (tfFahrenhebit);
    	contentPane.add (lbCelsius);
    	contentPane.add (tfCelsius);
    	contentPane.add (btFtoC);
    	contentPane.add (btCtoF);
    	
    	//Specify listeners
    	btFtoC.addActionListener(new FtoCListener());
    	btCtoF.addActionListener(new CtoFListener());
    	addWindowListener(new MyWindowAdapter());
    }
    //////////////////////Controller
    //Fahrenbeit button listener
    private class FtoCListener implements ActionListener{
    	public void actionPerformed (ActionEvent event){
    		String inStr = tfFahrenhebit.getText().trim();
    		double f = Double.parseDouble(inStr);
    		thermo.setFahrenheit(f);
    		String outStr=
    			Format.justify ('1',thermo.getCelsius(),0,2);
    		tfCelsius.setText (outStr);
    	}
    }
    
    //Celsius button listener
    private class CtoFListener implements ActionListener{
    	public void actionPerformed (ActionEvent event){
    		String inStr = tfCelsius.getText().trim();
    		double c =Double.parseDouble(inStr);
    		thermo.setCelsius(c);
    		String outStr
    			=Format.justify ('1',thermo.getFahrenheit(),0,2);
    		tfFahrenhebit.setText (outStr);
    	}
    }
    
    //Window listener
    private class MyWindowAdapter extends WindowAdapter{
    	public void WindowClosing (WindowEvent e){
    		System.exit(0);
    	}
    }
}

[xianngqian]

我弄了半天,下载了BreezyGUI.jar,放在C:\Program Files\Java\jdk1.6.0_03\lib,下了,不能用,提示说软件包BreezyGUI不存在,然后又把这个jar放到C:\Program Files\Java\jdk1.6.0_03\jre,C:\Program Files\Java\jre1.6.0_03\lib下了,但都是一样的情况,又迷茫了...

[dangjisheng]

你可以用eclipse导入项目中，就是那个关联应用

[yibunengjing]

拿到我这里跑了一下，发现以下代码有问题：
1，Format.justify('1', thermo.getCelsius(), 0, 2);
Format没有justify这个方法

2，tfFahrenheit.setText(outStr);
tfFahrenheit这个变量没有定义它的类型

第一个问题很有可能是和JDK版本有关，我这里是JDK6

[favorite7w]

Format这个类没有导入嘛，而且这个Format并不是java.util.Format，是自个实现的吧?

[xianngqian]

难道就没有简单的办法吗?,我没用过eclipse,我用的是JCreator.

[xianngqian]

我的也是jdk6,这段代码基本上是照抄的,书上也没提到Format需要导入啊,到底是什么问题呢.

[b307077419]

....................................

[納蓝的天空]

刚入门的
看你们玩
学经验来了……
呵呵

[xianngqian]

我只是个新手,见笑了,可这个到底怎么解决呢?

[sky_ccy]

C:\Program Files\Java\jdk1.6.0_03\lib\ext和
C:\Program Files\Java\jdk1.6.0_03\jre\ext
下把，因为你是外部jar包，兄弟，加油

[xianngqian]

感谢各位的帮忙,问题终于解决了.
特别感谢7楼跟11楼!
:) 谢谢你们!