GUI opens with Rstudio but not from command prompt using Rscript

Am trying to call R GUI script in java swing using rjava from windows10 command prompt. When I run the script it runs fine in Rstudio but when I run in the command prompt using R script the GUI window does not appear

The code written in java , I have called from R script and the GUI opens in the R studio but in command prompt using Rscript it does not work

Following is R code

x <- .jnew("HelloJava1")

Following is java swing code

import java.awt.*;
import javax.swing.*;

public class HelloJava1 extends JComponent {

public void test() {
        Runnable r = new Runnable() {
        public void run() {
            JFrame f = new JFrame("HelloJava1");
            // f.setSize(300, 300);  better to pack() the frame
            f.getContentPane().add(new HelloJava1());
            // pack should be AFTER components are added..
     // Swing GUIs should be created and updated on the EDT

@Override  // good practice..
    public void paintComponent(java.awt.Graphics g) {
    // always call super method 1st!
       g.drawString("Hello, Java!", 125, 95);

// instead of setting the size of components, it is 
// better to override the preferred size.
    public Dimension getPreferredSize() {
      return new Dimension(300,300);

Following is the code using command prompt

D:\Esurveyingsofttech\elevation>"C:\Program Files\R\R-3.6.1\bin\x64\Rscript.exe" D:\\Esurveyingsofttech\\elevation\\TestSwingGui.R

Java swing code opens a GUI in R studio , similarly when we run using Rscript the GUI should open. Any help is highly appreciated

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