import javax.swing.JApplet;
import javax.swing.JOptionPane;
import java.awt.Graphics;public class Title3_6 extends JApplet {
String result;
public void init()
{
String str1,str2;
float number1,number2;
double sum,defference,product,quotient;
str1=JOptionPane.showInputDialog("请输入第一个数:");
str2=JOptionPane.showInputDialog("请输入第二个数:");
number1=Float.parseFloat(str1);
number2=Float.parseFloat(str2);
sum=number1+number2;
defference=number1-number2;
product=number1*number2;
quotient=number1/number2;
result="你输入的两个数为:"+number1+", "+number2+"\n"+" 和:"+sum+
"\n"+" 差:"+defference+"\n"+" 积:"+product+"\n"+" 商:"+quotient;
}
public void paint(Graphics g)
{
super.paint(g);
g.drawString(result,20,30);
}}//截图在回复区显示
import javax.swing.JOptionPane;
import java.awt.Graphics;public class Title3_6 extends JApplet {
String result;
public void init()
{
String str1,str2;
float number1,number2;
double sum,defference,product,quotient;
str1=JOptionPane.showInputDialog("请输入第一个数:");
str2=JOptionPane.showInputDialog("请输入第二个数:");
number1=Float.parseFloat(str1);
number2=Float.parseFloat(str2);
sum=number1+number2;
defference=number1-number2;
product=number1*number2;
quotient=number1/number2;
result="你输入的两个数为:"+number1+", "+number2+"\n"+" 和:"+sum+
"\n"+" 差:"+defference+"\n"+" 积:"+product+"\n"+" 商:"+quotient;
}
public void paint(Graphics g)
{
super.paint(g);
g.drawString(result,20,30);
}}//截图在回复区显示
g.drawString(result1,20,30);
g.drawString(result2,20,60);用浏览器(如IE)执行,应该没乱码