?? graphicsinout.java.bak
字號:
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class GraphicsInOut extends Applet implements ActionListener
{
Label prompt;
TextField input1;
TextField input2;
public void init()
{
prompt = new Label("Enter two number,press enter!");
input1 = new TextField(3);
input2 = new TextField(3);
add(prompt);
add(input1);
add(input2);
input1.addActionListener(this);
input2.addActionListener(this);
}
public void paint(Graphics g)
{
int a,b,c;
a=Inter.parseInt(input1.getText());
b=Inter.parseInt(input2.getText());
c=a+b;
g.drawString("the sum is "+c,60,80);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource() ==input2)
repaint();
}
}
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