【特急！！！】java、数据库程序设计题

Question

import java.sql.*;
import java.awt.*;
import java.awt.event.*;

public class bb1 {
public static void main(String args[]) {
ccc x=new ccc();
x.fun();

}
}

class ccc {
String zuozhe;
Frame obj=new Frame("第一个自己定义的窗体");
Panel p1=new Panel();
Panel p2=new Panel();
CheckboxGroup cg1=new CheckboxGroup();
Label l1=new Label("学号");
Label l2=new Label("系别");
Label l3=new Label("专业");
Label l4=new Label("姓名");
Label l5=new Label("性别");
TextField t1=new TextField();
TextField t2=new TextField();
TextField t3=new TextField();
TextField t4=new TextField();
TextField t5=new TextField();

List cc1=new List();
Button b1=new Button("frame1");

public void fun(){
obj.setSize(450,350);
obj.add(p1,"North");
obj.add(p2,"Center");
p2.setLayout(null);
Button b2=new Button("删除");
p1.add(b2);
Button b3=new Button("添加");
p1.add(b3);
Button b4=new Button("更新");
p1.add(b4);

b4.addActionListener(new ax());
b3.addActionListener(new ay());
b2.addActionListener(new az());

l1.setBounds(120,30,50,30);
p2.add(l1);
l2.setBounds(120,60,50,30);
p2.add(l2);
l3.setBounds(120,90,50,30);
p2.add(l3);
l4.setBounds(120,120,50,30);
p2.add(l4);
l5.setBounds(120,150,50,30);
p2.add(l5);
t1.setBounds(190,30,50,30);
t2.setBounds(190,60,50,30);
t3.setBounds(190,90,50,30);
t4.setBounds(190,120,50,30);
t5.setBounds(190,150,50,30);

p2.add(t1);
p2.add(t2);
p2.add(t3);
p2.add(t4);
p2.add(t5);
cc1.setBounds(10,10,50,150);
java程序设计和数据库的连接

Answer 1

mport javax.swing.JOptionPane;

public class java_1
{
public static void main( String args[] )
{
int x, y, result;
String xval, yval;
do{
xval = JOptionPane.showInputDialog( "输入第1个整数:" );
if(xval==null)System.exit(0);
}while(!xval.matches("\\d+"));

do{
yval = JOptionPane.showInputDialog( "输入第2个整数:" );
if(yval==null)System.exit(0);
}while(yval==null||!yval.matches("\\d+"));
//*********found********
x = Integer.parseInt(xval);
y = Integer.parseInt(yval);
result = x * y;
//*********found********
JOptionPane.showMessageDialog( null, "两个数的积: " +result );
System.exit(0);
}
}