In both Alice and Java, every variable has an associated type that is specified when the variable is declared.

The need to index a database is probably greater when you are analyzing historical data of a two-year-old local candy store than when analyzing historical data related to a 50-year-old national supermarket

Indicate whether the statement is true or false

Answer the following statements true (T) or false (F)

1. An example of an icon is a piece of paper image "thrown" into a wastebasket icon. 2. An option button or radio button on a graphical user interface is used for mutually exclusive choices. 3. A list box on a graphical user interface is used to perform an action. 4. Sliders and spin buttons are used to change data that has a continuous range of values.