A JTextField is a subclass of JTextComponent class and it is one of the most important components that allow the user to input text value in a single-line format. A JTextField class will generate an ActionListener interface when we trying to enter some input inside it. The important methods of a JTextField class are setText(), getText(), setBorder(), setEnabled(), etc.
We can add padding to a JTextField using the setMargin(Insets s) of JTextComponent class.
Syntax
public void setMargin(Insets m)
Example
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class JTextfieldPaddingTest extends JFrame { private JTextField jtf; public JTextfieldPaddingTest() { jtf = new JTextField("Welcome to Tutorials Point"); jtf.setMargin(new Insets(10, 10, 10, 10)); add(jtf, BorderLayout.NORTH); setSize(400, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLocationRelativeTo(null); setVisible(true); } public static void main(String[] args) { new JTextfieldPaddingTest(); } }