関連ワード:  should i learn java or python    should i learn java or python first    should i learn java or python in 2025    should i learn java or python reddit    should i learn java or python in 2024    should i learn java or python first reddit    should i learn java or python for job    should i learn java or python for web development    should i learn java or python for backend    should i learn java or python as a beginner