阅读下面程序import javax.swing.JOptionPane;public class BreakLabelTest{public static void main (String args[]){String output= ;stop:{for(int row=1;row<10;row++){for(int column=1;column<=5;column++){if(row=5)break stop;output+= * ;}output+= n ;}output+= nLoops terminated normally ;}JOptionPane.showMessageDialog(null,output, 用一个标志测试break语句”,JOptionPane.INFORMATION_MESSAGE);System.exit(0);}}程序运行结果是【 】
A.窗口中有5行*****
B.窗口中有5行****
C.窗口中有4行*****
D.窗口中有6行*****