Build a strong online portfolio. A strong online portfolio is essential for finding freelance Java programming jobs. Your portfolio should showcase your skills and experience, and it should be easy for potential clients to find. You can create a portfolio website or use a platform like GitHub to showcase your work. Be patient and persistent. It may take some time to find your first freelance Java programming job. Don't get discouraged if you don't get hired right away. Just keep networking, applying for jobs, and building your portfolio.