Task 1: Definitions & Concepts Instructions: Answer the questions below. 1. Keywords: To you best knowledge, briefly describe below words: a. Char => b. Double => C. Unicode => d. Literal => e. Identifier => 2. List all four integer types and write their bit and byte sizes: 3. What is the scope of a variable? 4. Why does Java strictly specify the range and behavior of its primitive types? 5. In general, when a cast is needed