Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;

public class Main {
    public static void main(String[] args) {

        JTextPane textPane = new JTextPane();
        textPane.setText("This is a test string");

        StyleConstants.setBold(BOLD, true);

        StyleConstants.setItalic(ITALIC, true);

        int start = 5;
        int end = 10;

        textPane.getStyledDocument().setCharacterAttributes(start, end - start, BOLD, false);
        textPane.getStyledDocument().setCharacterAttributes(start, end - start, ITALIC, false);
        for (int i = start; i < end; i++)
            System.out.println(
                    textPane.getStyledDocument().getCharacterElement(i).getAttributes().containsAttributes(BOLD)); // all now print true

        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new JScrollPane(textPane));
        frame.pack();
        frame.setVisible(true);
    }

    private static final MutableAttributeSet BOLD = new SimpleAttributeSet();
    private static final MutableAttributeSet ITALIC = new SimpleAttributeSet();
}