LessonAbout 6 minLesson languageEnglishதமிழ் (Tamil)हिन्दी (Hindi)മലയാളം (Malayalam)తెలుగు (Telugu)ಕನ್ನಡ (Kannada)বাংলা (Bengali)मराठी (Marathi)ગુજરાતી (Gujarati)ਪੰਜਾਬੀ (Punjabi)Chapter 2 · Lesson 2 of 502. Letters, true or false, and wordsThree more types: char for one letter, bool for true or false, and string for words. Join strings with + to build new ones.