import javax.swing.JOptionPane;

public class windowss{
    
public static void main(String[] args){
        String aa;
        aa
=JOptionPane.showInputDialog("please enter a number:");
        String bb;
        bb
=JOptionPane.showInputDialog("plese enter a number:");
        
int a;
        a
=Integer.parseInt(aa)+Integer.parseInt(bb);;
        String outstr;
        JOptionPane.showMessageDialog(
null,"the result is:"+a,"try",JOptionPane.INFORMATION_MESSAGE);
        System.exit(
0);
    }

}
剛學(xué)JAVA,有點(diǎn)喜歡,界面比VC6.0好看,呵呵,
parseInt(str),把一個(gè)字符串轉(zhuǎn)化成int類(lèi)型
showInputDialog( String),一個(gè)輸入對(duì)話框
showMessageDialog(String);一個(gè)顯示消息的對(duì)話框