?? sheshi.java
字號:
//<applet code = "sheshi.class" height=100 width=300> </applet>
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class sheshi extends Applet implements ActionListener
{
Label label1,label2;
TextField text1,text2;
Button button1,button2;
public void init()
{
label1=new Label("攝氏溫度");
label2=new Label("華氏溫度");
text1=new TextField(10);
text2=new TextField(10);
button1=new Button("轉華氏");
button2=new Button("轉攝氏");
setLayout(new GridLayout(3,2));
add(label1);
add(text1);
add(label2);
add(text2);
add(button1);add(button2);
button1.addActionListener(this);
button2.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource() == button1)
{
float 攝氏;
攝氏=Float.parseFloat(text1.getText());
text2.setText(String.valueOf(攝氏*9.0/5.0+32.0));
}
if(e.getSource() == button2)
{
float 華氏;
華氏=Float.parseFloat(text2.getText());
text1.setText(String.valueOf((華氏-32)*5.0/9.0));
}
}
}
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