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A keyword that declares a class. A class is a blueprint from which objects are created. Classes contain fields (variables) and methods (functions) that define the state and behavior of objects.
A statement that continues the loop. It continues the current flow of the program and skips the remaining code on explicit conditions.
A keyword that specifies a default block of code in a switch statement, or a default value for an annotation element.
Do keyword is starts a do-while loop that executes a block of code at least once, and then repeats as long as a condition is true.
double is primitive data type that can store 64-bit floating-point numbers, from 4.9e-324 to 1.8e+308.