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Big Java Chapter 2 Questions and Answers Graded A+ What is a variable in Java? A named storage location for data in memory. How do you declare a double variable in Java? `double value;` What keyword is used to define a constant variable in Java? `final` How do you concatenate two strings in Java? Using the `+` operator. What will `Sln("Big" + "Java");` print? BigJava 2 How do you assign a value to an already declared variable? Using the assignmen...