Java JOptionPane，返回时的帮助

这是我在这个网站上的第一篇帖子，因为这个网站已经帮了我很多忙。我想到的不是什么问题，而是一些我想学习如何去做的事情。这是我的密码

String a = JOptionPane.showInputDialog(null,"Please pick something for me to do master:\nMynumber,Read2me, Conversions");
if (a.equals("Mynumber"))
{
    MyNumber = Integer.parseInt(JOptionPane.showInputDialog(null, "Please enter your number: "));
    String b = JOptionPane.showInputDialog(null,"Was Your number "+MyNumber+"\n Y/N");
    if (b.equals("y"))
    {
        JOptionPane.showMessageDialog(null,"Good...good, now lets play with\n your number");
    }
    else if(b.equals("N"))
    {
        JOptionPane.showMessageDialog(null,"returning");

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我的目标是，当它到达最后一个on（当用户键入n）时，我希望它返回到起始字符串或字符串A，例如，如何在代码中实现这一点

while(true) { // instead of while(true) you can also write other condition
 String a = JOptionPane.showInputDialog(null,"Please pick something for me to do  master:\nMynumber,Read2me, Conversions");
 if (a.equals("Mynumber")) {
    MyNumber = Integer.parseInt(JOptionPane.showInputDialog(null, "Please enter your number: "));
    String b = JOptionPane.showInputDialog(null,"Was Your number "+MyNumber+"\n Y/N");
    if (b.equals("y")) {
        JOptionPane.showMessageDialog(null,"Good...good, now lets play with\n your number");
    }
    else if(b.equals("N")) {
        JOptionPane.showMessageDialog(null,"returning");
    }
 }
}

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他还需要一个返回语句和适当的方法签名。你到底想要什么？返回哪里