是否可以基于 if 语句进行循环？

Question

如果用户在输入输入后单击“否”，我将尝试让我的代码循环。

import java.awt.event.WindowAdapter;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

    public class Sizer extends WindowAdapter 

    {

            public static void main (String[]args){

            JFrame m = new JFrame();

            JOptionPane.showMessageDialog(m,"Ok To set the window size you are going to type in the number for each value REMEMBER THE SIZE IS IN PIXELS");

            String input1= JOptionPane.showInputDialog("Height (suggested under 1080 and above 300)");

            int Height= Integer.parseInt( input1);

在此输入之后，我必须确认该用户是否正确输入了它，如果他们单击“是”，它会继续运行，如果他们单击“否”，它会退出我希望它让用户再次输入它，我该怎么做？

        int a1 = JOptionPane.showConfirmDialog(m,"Are you sure that this is the correct Height"+ Height);

        if (a1==JOptionPane.YES_OPTION){

        if (a1==JOptionPane.NO_OPTION){

        }

        String input2= JOptionPane.showInputDialog("Width (suggested under 1920 and above 300)");

        int Width = Integer.parseInt( input2);

        JFrame frame = new JFrame();                    

        Slop comp = new Slop();

        frame.add(comp);

        frame.setSize(Height,Width);

        frame.setTitle("Slop of a Line");

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setVisible(true);

                }   

        }

}