Exam 2: Using Data

The expression boolean isTenLarger = (10 < 5) will produce a value of true.

The characters ____ move the cursor to the next line when used within a println() statement.

final int COSTPERITEM = 10; double sales2012 = amtSold * COSTPERITEM; In the above statements, identify the named constant and describe how a programmer can recognize named constants.

When a numeric variable is concatenated to a String, the entire expression becomes a(n) ____.

import javax.swing.JOptionPane; public class salesJune { public static void main(String[] args) { int storeSales = 250; ______________________________ } } In the above code, complete the statement that will display a message dialog box that will appear centered on the screen and will display the following text: Congratulations! June sales were $250!

In Java, you use variables of type ____ to store integers, or whole numbers.

You use ____ operators to perform calculations with values in your programs.

Describe why it is important to assign an appropriate data type to variables in an application.

A variable declaration is a statement that reserves a named memory location. It includes what four elements?

How would you ask the user to confirm an action using a dialog box?

The legal integer values are -2³¹ through 2³¹-1. These are the highest and lowest values that you can store in four bytes of memory, which is the size of an int variable.

Multiplication, division, and remainder always take place after addition or subtraction in an expression.

You may declare an unlimited number of variables in a statement as long as the variables are ____.

You can store any character, including nonprinting characters such as a backspace or a tab, in a(n) ____ variable.