import java.awt.Container;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JTextArea;
public class Main {
public static void main(String args[]) {
JFrame frame = new JFrame();
Container content = frame.getContentPane();
content.setLayout(new GridLayout(0, 2));
JTextArea leftTextArea = new JTextArea();
content.add(leftTextArea);
leftTextArea.paste();
frame.setSize(250, 150);
frame.setVisible(true);
}
}